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Graphene patents

      

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 Proton conducting membrane comprising monolithic 2d material and ionomer, a process for preparing same and use of same in fuel cell and hydrogen gas sensor patent thumbnailProton conducting membrane comprising monolithic 2d material and ionomer, a process for preparing same and use of same in fuel cell and hydrogen gas sensor
The present invention relates to a graphene-based or other 2-d material membrane which allows the passage of protons and deuterons and to a method of facilitating proton or deuteron permeation through such a membrane. Monocrystalline membranes made from mono- and few-layers of graphene, hbn, molybdenum disulfide (mos2), and tungsten disulfide (ws2) etc.
The University Of Manchester


 Metal-doped graphene and growth  the same patent thumbnailMetal-doped graphene and growth the same
A metal-doped graphene and a growth method of the same are provided. The metal-doped graphene includes graphene and metal elements, wherein the metal elements accounts for 1-30 at % based on the total content of the metal-doped graphene.
Industrial Technology Research Institute


 Semiconductor device and  manufacturing the same patent thumbnailSemiconductor device and manufacturing the same
According to one embodiment, a semiconductor device is disclosed. The device includes a substrate, and a first interconnect on the substrate.
Kabushiki Kaisha Toshiba


 Substrate and electronic device patent thumbnailSubstrate and electronic device
A substrate includes: a support substrate having a first main surface and a surface layer region which includes at least the first main surface and is formed of any one material selected from the group consisting of boron nitride, molybdenum disulfide, tungsten disulfide, niobium disulfide, and aluminum nitride; and a graphene film disposed on the first main surface and having an atomic arrangement oriented in relation to an atomic arrangement of the material forming the surface layer region. Accordingly, the substrate is provided that enables a high mobility to be stably ensured in an electronic device manufactured to include the graphene film forming an electrically conductive portion..
Sumitomo Electric Industries, Ltd.


 Resilient radio-frequency tag patent thumbnailResilient radio-frequency tag
A transponder comprises a first polymer layer. A radio frequency (“rf”) transponder is affixed to the first polymer layer, wherein the rf transponder includes a processor in electrical communication with a graphene-based antenna.
Vorbeck Materials Corp.


 Method for manufacturing pdlc display device and pdlc display device patent thumbnailMethod for manufacturing pdlc display device and pdlc display device
The present invention provides a method for manufacturing a pdlc display device and a pdlc display device. The method for manufacturing a pdlc display device according to the present invention includes mixing pdlc with graphene nanoparticles to improve the response speed of the pdlc and reduce a driving voltage of the pdlc, and also combines qds to make a novel high color saturation display device, which requires no alignment layer and polarizer, providing a simple manufacturing process, showing an innovated and unique displaying effect, demonstrating at least four displaying modes of red, green, blue, and indistinctness, and overcoming light leakage of pixels and color mixture occurring in an existing pdlc display device.
Shenzhen China Star Optoelectronics Technology Co., Ltd.


 An  controllably populating a channel with charge carriers patent thumbnailAn controllably populating a channel with charge carriers
An apparatus comprising: a channel (4) configured to conduct charge carriers; and a charge carrier generator (22) configured to generate charge carriers for populating the channel, wherein the charge carrier generator is configured for resonance energy transfer (fret). The charge carrier generator may be a nanoparticle or quantum dot (22), functionalised with at least one moiety (28a, 28b) to enable detection of an analyte.
Nokia Technologies Oy


 Apparatus and  mitigation of alterations in mass spectrometry in the presence of hydrogen patent thumbnailApparatus and mitigation of alterations in mass spectrometry in the presence of hydrogen
Gas chromatograph-mass spectrometer comprising an ion source, the walls of which are realized or covered with at least one layer of graphene. Thus realized, the gas chromato graph-mass spectrometer proves to be particularly suited to the analysis samples containing hydrogen in addition to the substances to be analyzed.

 Gallium nitride growth on silicon patent thumbnailGallium nitride growth on silicon
Systems and methods for gallium nitride growth on silicon. A semiconductor device, comprising a silicon (001) substrate.
Innosys, Inc.


 Electrochemical production of graphene sheets directly from graphite mineral patent thumbnailElectrochemical production of graphene sheets directly from graphite mineral
A method of producing graphene sheets directly from graphite mineral (graphite rock) powder, comprising: (a) forming an intercalated graphite compound by an electrochemical intercalation procedure conducted in an intercalation reactor, containing (i) a liquid solution electrolyte comprising an intercalating agent and a graphene plane-wetting agent dissolved therein; (ii) a working electrode that contains the graphite material powder as an active material; and (iii) a counter-electrode, and wherein a current is imposed upon the working electrode and counter electrode at a current density sufficient for effecting electrochemical intercalation of the intercalating agent and/or wetting agent into interlayer spacing, wherein the wetting agent is selected from melamine, ammonium sulfate, sodium dodecyl sulfate, na(ethylenediamine), tetraalkyammonium, ammonia, carbamide, hexamethylenetetramine, organic amine, poly(sodium-4-styrene sulfonate), or a combination thereof; and (b) exfoliating and separating the intercalated graphite compound using ultrasonication, thermal shock exposure, and/or a mechanical shearing treatment to produce graphene sheets.. .

Enhanced exothermic reaction (eer) reactor

A method and apparatus for carrying out highly efficient switching inductive magnetic enhanced exothermic reactions (eers) on the surface of electrodes with a conductive electrically heated lithium-polymer electrolyte with switching magnetic fields while under hydrogen loading pressures to produce a second exothermal electrode surface and/or plasma heat reaction to heat a fluid, gas, or heat thermoelectric modules to produce electricity and store energy, while producing a cross-linked carbon graphene by-product at elevated temperatures using an auger to pump and transport the electrolyte fuel in a continuous or intermittent process or a onetime use. The device can self-start from an internal stored charge to electrically start a heated reaction..

Methods of fabricating pdlc thin films

The present provides a method of fabricating a pdlc thin film. The method of fabricating the pdlc of the present application forms the first solution by mixing the liquid crystal and the graphene nanoparticles; prepares the prepolymer by using the citric acid and the 1,8-octanediol, or the citric acid, the 1,8-octanediol and the 1,8-octanediol; forms the second solution by dissolving the prepolymer in the anhydrous ethanol; then obtains the mixture prepolymer of the polymer dispersed liquid crystal and the graphene nanoparticles by mixing and uniformly stirring the first solution and the second solution; and obtains the pdlc thin film after the mixture prepolymer is polymerized for several days.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Tunable materials

One or more techniques are disclosed for a method for functionalized a graphitic material comprising the steps of: 1) providing a graphitic material; 2) providing a first molecule comprising a first group, a spacer, and a second group; 3) providing a second molecule comprising a third group, a spacer, and a fourth group, wherein the third group is a different group from the first group; and 4) bonding the first molecule and the second molecule to the graphitic material. Also disclosed is a tunable material composition comprising the functionalized carbon nanotubes or functionalized graphene prepared by the methods described herein..
Tesla Nanocoatings, Inc.

Tunable materials

One or more techniques are disclosed for a method for functionalized a graphitic material comprising the steps of: 1) providing a graphitic material; 2) providing a first molecule comprising a first group, a spacer, and a second group; 3) providing a second molecule comprising a third group, a spacer, and a fourth group, wherein said third group is a different group from said first group; and 4) bonding the first molecule and the second molecule to the graphitic material. Also disclosed is a tunable material composition comprising the functionalized carbon nanotubes or functionalized graphene prepared by the methods described herein..
Tesla Nanocoatings, Inc.

Methods for producing graphene with tunable properties by a multi-step thermal reduction process

A process for the preparation of graphene includes the steps of a) providing flash thermal treatment of a graphite oxide at a temperature up to 700° c. Sufficient to produce exfoliation and under inert atmosphere and b) cooling the material obtained in the previous step below 90° c.
Repsol, S.a.

Graphene dispersant and application thereof

The present disclosure provides a method for dispersing graphene. The method includes the following steps: providing a graphene material and a graphene dispersant, wherein the graphene dispersant comprises aniline oligomer or aniline oligomer derivative, the aniline oligomer or aniline oligomer derivative is an electroactive polymer, and the aniline oligomer or aniline oligomer derivative is able to combine with the graphene material via π-π bond; and adding the graphene material and the graphene dispersant to a dispersing medium, making the aniline oligomer or aniline oligomer derivative combine with the graphene material via π-π bond, and dispersing the graphene material in the dispersing medium by the graphene dispersant..
Ningbo Institute Of Materials Technology And Engineering, Chinese Academy Of Sciences

Graphene surface functionality transfer

A method of transferring functionalized graphene comprising the steps of providing graphene on a first substrate, functionalizing the graphene and forming functionalized graphene on the first substrate, delaminating the functionalized graphene from the first substrate, and applying the functionalized graphene to a second substrate.. .
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Graphene-based rotman lens

Embodiments of the present invention relate to graphene-based rotman lenses. In an embodiment, a lens is formed on a surface of a dielectric plate.
Vorbeck Materials Corp.

Graphene compound, forming graphene compound, and lithium-ion storage battery

A material that can be used in a wide temperature range is provided. A graphene compound includes graphene or graphene oxide and a substituted or unsubstituted chain group, the chain group includes two or more ether bonds, and the chain group is bonded to the above graphene or graphene oxide through a si atom.
Semiconductor Energy Laboratory Co., Ltd.

Cathode material preparation method, cathode material and lithium-ion battery

The present invention is related to the method for producing the cathode material, cathode material and lithium-ion battery. The present invention provides the higher capacity and number of recharge cycles.
Obshhestvo S Ogranichennoj Otvetsvennost'ju "lition"

Graphene display devices and the display driving methods thereof

A graphene display device includes a graphene display unit and a display control unit electrically connected with the graphene display unit. The graphene display unit includes a plurality of graphene light emitting structures constituting dynamic sub-pixels of the graphene display unit.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Graphene-semiconductor schottky junction photodetector of having tunable gain

Disclosed herein is a photodetector utilizing graphene. A single-layer graphene channel is formed on a semiconductor substrate doped with n-type impurity.
Gwangju Institute Of Science And Technology

Graphene wiring structure and manufacturing graphene wiring structure

A graphene wiring structure of an embodiment has a multilayered graphene having a plurality of planar graphene sheets laminated, and a first interlayer substance being a metal oxyhalide between the plurality of planar graphene sheets.. .
Kabushiki Kaisha Toshiba

Plasma-enhanced chemical vapor deposition methods for graphene deposition

A graphene deposition process. The process includes the steps of placing a substrate into a deposition chamber and heating the chamber, generating radio frequency plasma at a location proximate to the substrate while flowing a precursor gas containing carbon through the plasma and over the substrate..
Purdue Research Foundation

Method for manufacturing flexible graphene electrically conductive film

A method for manufacturing a flexible graphene electrically conductive film includes (1) providing a base and forming a graphene layer on a surface of the base; (2) providing polyvinyl alcohol, dissolving polyvinyl alcohol in water and heating to form a colloidal solution, which after cooling, forms a polyvinyl alcohol colloidal solution; and coating the polyvinyl alcohol colloidal solution on a surface of the graphene layer and drying so as to form a supporting layer on the surface of the graphene layer; (3) removing the base from the graphene layer; and (4) dissolving the supporting layer on the graphene layer in water so as to obtain a flexible graphene electrically conductive film that is free of surface residue.. .
Wuhan China Star Optoelectronics Technology Co., Ltd.

Wear-resistant liquid-based coatings for glass

A sol-gel method for forming durable, scratch-resistant coatings on glass substrates. Zirconia coatings, for example, are formed from a solution of zirconium oxychloride octahydrate in an organic, polar, aprotic solvent such as dimethylformamide.
Corning Incorporated

Methods of forming graphene-coated diamond particles and polycrystalline compacts

Coated diamond particles have solid diamond cores and at least one graphene layer. Methods of forming coated diamond particles include coating diamond particles with a charged species and coating the diamond particles with a graphene layer.
Baker Hughes Incorporated

Graphene-based inorganic-organic hybrid materials and separation of racemic mixtures

A variety of inorganic-organic hybrid materials and various methods for preparing and using the same are described. The hybrid materials are graphene or graphitic materials populated with organic molecules and may have a variety of surface defects, pits or three-dimensional architecture, thereby increasing the surface area of the material.
Stc.unm

Circuit board and manufacturing method thereof

A circuit board is disclosed. In addition to insulating layers, the circuit board includes a structure for heat transfer that includes a first layer that is formed of graphite or graphene, a second layer that is formed of metallic material and disposed on one surface of the first layer, and a third layer that is formed of metallic material and disposed on the other surface of the first layer, and at least a portion of the structure for heat transfer is inserted into an insulation layer.
Samsung Electro-mechanics Co., Ltd.

Graphene oxide based acoustic transducer methods and devices

Materials used in acoustic transducer membranes need very specific qualities that in any real system require many tradeoffs to be made. graphene and graphene related materials are a newly discovered class of materials with some exceptional properties that offer the potential for significant contributions to the performance of many acoustical transduction systems.
The Royal Institution For The Advancement Of Learning/mcgill University

A ming a graphene oxide-reduced graphene oxide junction

A method including a deposition step comprising depositing a layer of graphene oxide; a deposition step including selectively exposing a region of the deposited graphene oxide layer to electromagnetic radiation to form a region of reduced graphene oxide adjacent to a neighbouring region of unexposed graphene oxide, the graphene oxide and adjacent reduced graphene oxide regions forming a junction therebetween to produce a graphene oxide-reduced graphene oxide junction layer; and repeating the deposition and exposure steps for one or more further respective layers of graphene oxide, over an underlying graphene oxide-reduced graphene oxide junction layer, to produce an apparatus in which the respective junctions of the graphene oxide-reduced graphene oxide layers, when considered together, extend in the third dimension.. .
Nokia Technologies Oy

Apparatus and associated methods for electrical storage

An apparatus including a first electrode, a second electrode and an electrolyte, the first electrode including graphene oxide and configured to generate protons in the presence of water to produce a potential difference between the first and second electrodes, the electrolyte configured to enable the generated protons to flow from the first electrode to the second electrode when the first and second electrodes are connected by an external circuit, wherein the electrolyte includes a room-temperature ionic fluid configured to absorb water from the surrounding environment and deliver said water to the first electrode to facilitate the generation of protons.. .
Nokia Technologies Oy

Photodiode using graphene-silicon quantum dot hybrid structure and manufacturing the same

Disclosed is a photodiode, which includes a graphene-silicon quantum dot hybrid structure, having improved optical and electrical characteristics by controlling the sizes of silicon quantum dots and the doping concentration of graphene. The photodiode including the graphene-silicon quantum dot hybrid structure of the present disclosure may be easily manufactured, may be manufactured over a large area, has a wide photodetection band from the ultraviolet light region to the near infrared region, and allows selective absorption energy control..
University-industry Cooperation Group Of Kyung Hee University

Multifunctional compositions and material laminates with graphitic or other nanomaterials

Compositions and methods for improved materials and material laminates with graphitic or inorganic/organic nanomaterials are presented. Graphitic or inorganic/organic nanomaterials, such as carbon nanotubes, carbon nanofibers, graphenes or graphene oxides, are introduced into an aqueous composition as fillers to provide a graphitic or inorganic/organic nanocomposite.
University Of Houston System

Fabrication of carbon nanoribbons from carbon nanotube arrays

Inter-allotropic transformations of carbon are provided using moderate conditions including alternating voltage pulses and modest temperature elevation. By controlling the pulse magnitude, small-diameter single-walled carbon nanotubes are transformed into larger-diameter single-walled carbon nanotubes, multi-walled carbon nanotubes of different morphologies, and multi-layered graphene nanoribbons..
Massachusetts Institute Of Technology

Method of making a transparent conductive composite material

A method of making a transparent conductive material includes: preparing a reactive solution that contains a solvent, a metal salt which is dissolved in the solvent, and a powder of graphene oxide which is dispersed in the solvent; and simultaneously reducing metal ions of the metal salt and the graphene oxide in the reactive solution to form a plurality of core-shell nanowires, each of which includes a core of a metal reduced from the metal ions, and a shell of graphene surrounding the core.. .
National Tsing Hua University

Semiconductor devices including field effect transistors and methods of forming the same

A semiconductor device includes an active pattern provided on a substrate and a gate electrode crossing over the active pattern. The active pattern includes a first buffer pattern on the substrate, a channel pattern on the first buffer pattern, a doped pattern between the first buffer pattern and the channel pattern, and a second buffer pattern between the doped pattern and the channel pattern.
Samsung Electronics Co., Ltd.

Doped graphene electrodes as interconnects for ferroelectric capacitors

A ferroelectric capacitor having a doped graphene bottom electrode and uses thereof are described. The doped graphene bottom electrode layer is deposited on a substrate with a ferroelectric layer deposited between the doped graphene layer and a top electrode..
Sabic Global Technologies B.v.

Methods of forming graphene contacts on source/drain regions of finfet devices

One illustrative method disclosed herein includes forming a gate structure above a portion of a fin and performing a first epitaxial growth process to form a silicon-carbide (sic) semiconductor material above the fin in the source and drain regions of a finfet device. In this example, the method also includes performing a heating process so as to form a source/drain graphene contact from the silicon-carbide (sic) semiconductor material in both the source and drain regions of the finfet device and forming first and second source/drain contact structures that are conductively coupled to the source/drain graphene contact in the source region and the drain region, respectively, of the finfet device..
Globalfoundries Inc.

Conducting elastomers

Embodiments of the present invention relate to conducting elastomers and associated fabrication methods. In one embodiment, the conducting elastomer comprises a filler powder and a polymer.

Magnetic field sensor using in situ solid source graphene and graphene induced anti-ferromagnetic coupling and spin filtering

A magnetic field sensor based on two anti-ferromagnetically coupled magnetic layers separated by multilayer graphene, prepared in a single sputter chamber without a vacuum break.. .
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Graphene-modified electrodes

The specification provides an assay electrode including a composite containing a matrix and a multiplicity of graphene particles dispersed therein.. .
Meso Scale Technologies, Llc.

Method to massively manufacture carbon fibers through graphene composites and the use thereof

This invention innovates a low cost method to synthesize carbon fibers through graphene composites, which are fabricated through chemical treatment of graphite. This invention also is related to the applications of thereof carbon fibers in different fields.

Method of forming a dielectric through electrodeposition on an electrode for a capacitor

The present invention relates to a method for forming a capacitor having carbon or metal electrodes and an electrolyte which is also a source of electropolymerisable anions. Applying a sufficiently positive voltage, a thin dielectric layer forms at the positive electrode, enabling the use of cell voltages higher than 3.5 v.
University Of Tartu

Two-dimensional materials

A method of preparing a 2d material (e.g. graphene or of boron nitride), the method comprising: (i) selecting a fluid comprising the 2d material dispersed in a solvent; (ii) using a filtration device to remove solvent from the fluid and increase the concentration of 2d material in the fluid, wherein the fluid suitably includes a surfactant, which may be sodium cholate or sodium dodecylbenezenesulphonate and wherein the filtration device is suitably a cross-flow filtration device..
Thomas Swan & Co. Ltd

Method for forming perforated graphene with uniform aperture size

A method of forming a filter with uniform pore sizes includes synthesizing a moiety so as to form a plurality of like platelets having a precisely sized pore extending therethrough, distributing the plurality of like platelets about a membrane having apertures therethrough, and bonding the plurality of platelets around the apertures to form precisely sized pores through the membrane. A filtration membrane is also disclosed which provides a porous membrane having a plurality of apertures therethrough, and a plurality of platelets, wherein each platelet has a pore therethrough.
Lockheed Martin Corporation

A forming a graphene oxide-reduced graphene oxide junction

An apparatus including a first electrode including a substantially homogeneous mixture of graphene oxide and a proton conductor; a second electrode including reduced graphene oxide; and spaced-apart charge collectors for the respective first and second electrodes, wherein the first and second electrodes extend from their respective charge collectors towards one another to form a junction at an interface there between, and wherein the substantially homogeneous mixture of the first electrode is configured to be sufficiently hydrophobic to prevent intermixing of the homogeneous mixture with the reduced graphene oxide of the second electrode in proximity to one or both of the respective charge collectors to prevent short circuiting of the spaced-apart charge collectors.. .
Nokia Technologies Oy

Hierarchical composite structures based on graphene foam or graphene-like foam

The present invention relates to a hierarchical composite structure comprising an open cell graphene foam or graphene-like foam, wherein the graphene foam or graphene-like foam is coated with a conductive nanoporous spongy structure and wherein at least 10% v/v of the hollow of the pores of the graphene foam or graphene-like foam is filled with the conductive nanoporous spongy structure. The invention also relates to a process for preparing a hierarchical composite structure wherein a conductive nanoporous spongy structure is electrodeposited so as to coat the open-cell graphene foam or graphene-like foam and to partially fill the hollow of the pores of the graphene foam or graphene-like foam..
Repsol, S.a.

Vertically oriented graphene nanosheets on aluminum electrodes

Novel compositions of vertically oriented graphene nanosheets on aluminum electrodes are provided. These compositions are particularly useful for advanced electrolytic capacitors and fast response electric double layer capacitors.
College Of William And Mary

Surface applied sensors

In some embodiments, apparatus and methods are provided herein useful to monitor surfaces of vessels. In some embodiments, apparatus for monitoring surfaces of vessels and may include a substrate disposed proximate to the surface.
Vorbeck Materials Corp.

Methods for separating nucleic acids with graphene coated magnetic beads

Disclosed herein are methods for separating and identifying nucleic acids by utilizing carbon coated magnetic beads. The method teaches that multivalent cations promote binding of single stranded nucleic acids to the beads and that the single stranded nucleic acids can be released with the addition of chelating agents that bind the multivalent cations such as edta.
Life Magnetics, Inc.

Method for desulfurizing diesel fuel

The present disclosure provides a method for removing sulfur compounds from a fuel containing sulfur compounds. The method includes contacting the fuel with an adsorbent that comprises a carbonaceous material doped with nanoparticles of aluminum oxide to reduce the concentrations of the sulfur compounds.
King Fahd University Of Petroleum And Minerals

Graphene-containing epoxy adhesives

Epoxy adhesive comprising graphene sheets and at least one epoxy resin and articles made therefrom.. .
Vorbeck Materials Corp.

Graphite oxide entrainment in cement and asphalt composite

A method of producing dispersed of high quality graphene/graphite oxides in a powder matrix to then be reacted to form a composite. Where the powders have similar hydrophobicity and the graphene/graphite oxides has minimal surface oxidation or minimal epoxy group and where the powders are sonically mixed..
Gamor Inc.

Block copolymer, and preparing graphene using the same

The present invention relates to a method for preparing graphene using a novel block copolymer. The present invention has features that, by using the block copolymer to mediate graphene that is hydrophobic and a solvent of a feed solution that is hydrophilic, the exfoliation efficiency of graphene as well as the dispersion stability thereof can be increased during high-pressure homogenization..
Seoul National University R&db Foundation

Electrochemical producing single-layer or few-layer graphene sheets

A method of producing isolated graphene sheets from a layered graphite, comprising: (a) forming an alkali metal ion-intercalated graphite compound by an electrochemical intercalation which uses a liquid solution of an alkali metal salt dissolved in an organic solvent as both an electrolyte and an intercalate source, layered graphite material as an anode material, and a metal or graphite as a cathode material, and wherein a current is imposed upon a cathode and an anode at a current density for a duration of time sufficient for effecting the electrochemical intercalation of alkali metal ions into interlayer spacing; and (b) exfoliating and separating hexagonal carbon atomic interlayers (graphene planes) from the alkali metal ion-intercalated graphite compound using ultrasonication, thermal shock exposure, exposure to water solution, mechanical shearing treatment, or a combination thereof to produce isolated graphene sheets.. .

Lithium sulfide-graphene oxide composite material for li/s cells

The disclosure provides methods for producing li2s-graphene oxide (li2s-go) composite materials. The disclosure further provides for the li2s-go made therefrom, and the use of these materials in lithium-sulfur batteries..
The Regents Of The University Of California

Hydrophobic-oleophilic hollow fiber composite membrane and preparing method thereof

A hydrophobic-oleophilic and hollow fiber composite membrane includes hollow tubular braids and surface separation layers coated on the outer surfaces of the hollow tubular braids. Membrane-forming polymers in the surface separation layers are polyvinylidene fluoride, and all other components are hydrophobic ingredients, including graphene.
Tianjin Polytechnic University

Method for producing filter molded article

A method for producing a filter molded article having a graphene layer as a filtering material is characterized by including a step of forming a support 3 layer on a surface of a graphene 1 layer formed on initial substrates for a graphene 2 and 9, a step of forming water passage holes in the support 3 layer, a step of removing the initial substrates for a graphene 2 and 9, and a step of forming water passage holes by heating and holding the graphene 1 layer at a low temperature in the air containing oxygen of 160 to 250° c. For a predetermined time..

Articles and improved transfer of bodily fluids

A method is provided to accelerate transfer of released body fluids from a body through a treated textile fabric to promote dryness of a skin of the body, the method comprising providing a treated textile fabric facing the body fluids to be transferred, wherein the treated textile fabric includes a first surface and a second surface, wherein the first surface is positioned facing towards the body fluids and the second surface is positioned facing away from the body fluids, wherein the treated textile fabric is structured with a plurality of pores so to allow a passage of a liquid from the first surface to the second surface, and wherein the first surface is coated with a graphene material such that a permeation flux of the first surface is greater than a permeation flux of the second surface.. .
Tamicare Ltd.

Physical unclonable function

Apparatus, electronic device, system and method comprising a first element (102) configured to receive a first signal and convert the first signal to a second signal, a second element (104) configured to relay the second signal to a third element (106, 108), the third element (106, 108) being configured to convert the second signal to a third signal and to send the third signal; wherein the first element (102) is configured to convert the first signal to the second signal in such a way that the conversion is dependent on the physio-chemical structure of at least part of the first element (102). In some embodiments the first element comprises a photoacoustic sensor comprising at least one graphene layer, the second element comprises a mechanical wave transmission line, and the third element comprises carbon nanotube antennas..
Nokia Technologies Oy

Method of preparation a battery electrode by spray coating, an electrode and a battery made by method thereof

The present invention provides a method of preparing a battery electrode, comprising: (a) providing electroactive particles; (b) mixing the electroactive particles with a graphene-based material to form a composite; and (c) spray coating the composite onto a substrate to form the battery electrode; wherein the percentage of the electroactive particles to the graphene-based material is 40-95 wt %. Furthermore, the present invention provides a high performance battery electrode and lithium sulfur battery or lithium metal oxide-sulfur battery..
Academia Sinica

Tunneling diode using graphene-silicon quantum dot hybrid structure and manufacturing the same

Disclosed is a tunneling diode, which includes a graphene-silicon quantum dot hybrid structure, having improved performance and electrical characteristics by controlling the sizes of silicon quantum dots and the doping concentration of graphene. The ideal tunneling diode of the present disclosure may be utilized in diode-based optoelectronic devices..
University-industry Cooperation Group Of Kyung Hee University

Graphene transistor and ternary logic device using the same

Disclosed is a graphene transistor using graphene as a channel region and a logic device using the same. A doping metal layer is provided over a graphene channel of the graphene transistor.
Gwangju Institute Of Science And Technology

Electronic device, stacked structure, and manufacturing the same

A stacked structure includes: an insulating substrate; a graphene film that is formed on the insulating substrate; and a protective film that is formed on the graphene film and is made of a transition metal oxide, which is, for example, cr2o3. Thereby, at the time of transfer of the graphene, polymeric materials such as a resist are prevented from directly coming into contact with the graphene and nonessential carrier doping on the graphene caused by a polymeric residue of the resist is suppressed..
Fujitsu Limited

Ionic barristor

A schottky barrier device is provided herein that includes a tmd layer on a substrate, a graphene layer on the tmd layer, an electrolyte layer on the tmd layer, and a source gate contact on the electrolyte layer. A drain contact can be provided on the tmd layer and a source contact can be provided on the graphene layer.
Board Of Regents, The University Of Texas System

Method of forming graphene nanopattern, graphene-containing device, and manufacturing the graphene-containing device

Methods of forming a graphene nanopattern, graphene-containing devices, and methods of manufacturing the graphene-containing devices are provided. A method of forming the graphene nanopattern may include forming a graphene layer on a substrate, forming a block copolymer layer on the graphene layer and a region of the substrate exposed on at least one side of the graphene layer, forming a mask pattern from the block copolymer layer by removing one of a plurality of first region and a plurality of second regions of the block copolymer, and patterning the graphene layer in a nanoscale by using the mask pattern as an etching mask.
Samsung Electronics Co., Ltd.

Semiconductor device structure and forming the same

A semiconductor device structure and method for forming the same are provided. The semiconductor device structure includes a substrate and an interconnect structure formed over the substrate.
Taiwan Semiconductor Manufacturing Co., Ltd.

Dye-sensitized solar cell including polymer/graphene composite gel electrolyte and methods of preparing the same

Disclosed are a dye-sensitized solar cell including a polymer/graphene composite gel electrolyte and methods of preparing the dye-sensitized solar cell. .
Sogang University Research Foundation

Volatile organic compound-based diagnostic systems and methods

Provided are devices and methods to detect the presence of volatile organic compounds related to the presence of a disease state in a biological sample. The devices may include a detection moiety such as a polynucleotide in electronic communication with a semiconductor such as graphene or a carbon nanotube..
Monell Chemical Senses Center

Light-emitting diode filament lamp

A light-emitting diode filament lamp contains: a lamp cap, a transparent housing, at least one filament support, and at least one light-emitting diode (led) filament. The lamp cap is electrically connected with an external power supply so as to supply power to the at least one led filament, the transparent housing is hollow and includes an opening, and each filament support includes a first metal post electrically connected with a positive terminal and includes a second metal post electrically connected with a negative terminal.

Load-bearing composite panels, materials, products, and processes to make and use same

Load-bearing composite panels, materials, and products made by surrounding with a long fiber and/or fiber cloth reinforced polyurethane resin, an assembly containing one or more load-bearing members, graphene, a structural polyurethane/resin sandwich composite and/or spider silk protein fiber-cloth-continuous fibers. The composite structures can provide stronger, lighter-weight structural items such as vehicle floor and body panels, bullet-proof anti-ballistic panel products, vehicle bullet-proof anti-ballistic body panel structures and floors, bullet-proof vests, vehicle chassis, monocoque chassis, motor homes chassis-bodies, fuselage floors and frames for aircraft and/or uav's, bicycle and motorcycle frames, wind turbine blades frames and structures, ship or boat haul body structures, shipment containers, pre-fabricated walls of buildings, train structure body or floor panels, solar panel supports, battery housings, mobile home walls, roof modules, truck beds, and truck trailer floors.

Polymer comprising repeating units consisting of a substituted pyrrole ring and products obtained by combining said polymers with carbon allotropes

The present invention relates to a polymer comprising repeating units consisting of a substituted pyrrole ring. In particular, the repeating units consist of substituted pyrrole containing polar groups capable of interacting with carbon allotropes such as carbon nanotubes, graphene or nanographites, in order to improve the chemical-physical characteristics of the allotropes mainly by increasing their dispersibility and stability in liquid media and in polymer matrices.
Politecnico Di Milano

Large scale production of oxidized graphene

Embodiments described herein relate generally to the large scale production of functionalized graphene. In some embodiments, a method for producing functionalized graphene includes combining a crystalline graphite with a first electrolyte solution that includes at least one of a metal hydroxide salt, an oxidizer, and a surfactant.
Group Nanoxplore Inc.

Chemical-free production of graphene-reinforced inorganic matrix composites

Provided is a simple, fast, scalable, and environmentally benign method of producing a graphene-reinforced inorganic matrix composite directly from a graphitic material, the method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of an inorganic solid carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of solid inorganic carrier material particles to produce graphene coated or graphene-embedded inorganic particles inside the impacting chamber; and (c) forming graphene-coated or graphene-embedded inorganic particles into the graphene-reinforced inorganic matrix composite. Also provided is a mass of the graphene-coated or graphene-embedded inorganic particles produced by this method..

Solid phase extraction column, preparation method therefor, and pre-processing chemical sample based on solid phase extraction column

A solid phase extraction column, preparation method therefor, and pre-processing method of chemical sample based on solid phase extraction column. The solid phase extraction column includes a separation column, and a solid phase extraction agent tilled within the separation column.
Carbon Nano Engineering Systems Corporation

System and forming electrical interconnects

A method of forming a high-conductivity electrical interconnect on a substrate may include forming a graphene film with a plurality of graphene members, depositing a metal over the graphene film, and providing a metallic overlay that connects the plurality of graphene members together through the depositing operation to form a covered graphene film.. .
The Boeing Company

Lithium-sulfur accumulator

A lithium-sulfur battery which includes an electrolyte containing lithium-ions, an anode and a cathode containing sulfur. The lithium-sulfur battery also contains a surface layer which is arranged between the anode and the cathode.
Bayerische Motoren Werke Aktiengesellschaft

Ordered nano-porous carbon coating on silicon or silicon/graphene composites as lithium ion battery anode materials

The present invention provides high specific capacity composite anode materials of silicon and carbon with stable charge/discharge cycling performance, and methods of producing them, where the composite anode materials comprise a core of silicon particles or silicon/graphene hybrid, and a layer of nano-ordered porous carbon coated on its surface. The coated carbon layer was produced by pyrolysis of self-assembled composite of a co-block polymer and a phenolic resin which was prepared from formaldehyde and phenolic compounds with either an acid or base as a catalyst..

Electrophoretic deposition of an electrode for a lithium-based battery

A method for manufacturing an electrode for a lithium-based battery by electrophoretic deposition is provided. The method includes: mixing particles with graphene oxide and a binder in a solution, the particles including a material selected from silicon, silicon oxide, silicon alloys, tin, tin oxide, sulfur, lithium manganese oxide, lithium cobalt oxide, lithium nickel oxide, lithium nickel manganese oxide, and lithium nickel manganese cobalt oxide.
Gm Global Technology Operations Llc

Method of preparing graphene-based thin-film laminate and graphene-based thin-film laminate prepared using the same

Provided are a method of preparing a graphene-based thin-film laminate and the graphene-based thin-film laminate prepared by using the method. The method may include repeating following operations 60 times or less, the cycle including: (a) to (d) processes described above, a graphene-based thin-film laminate prepared using the same, and an electrode and electronic device including the graphene-based thin-film laminate..
Hanwha Techwin Co., Ltd.

Graphene-based laminate and preparing the same

Provided are a graphene-based laminate and a method of preparing the graphene-based laminate. The graphene-based laminate may include a substrate; a graphene layer formed on at least one surface of the substrate; and an inorganic layer formed on the graphene layer and including a fluorine-containing lithium compound..
Hanwha Techwin Co., Ltd.

Aligned graphene-carbon nanotube porous carbon composite

Embodiments of the present disclosure are directed to carbon-containing composites which are suitable for use as electrodes in electrochemical systems. The composites are formed from a scaffold of graphene and carbon nanotubes.
The Arizona Board Of Regents On Behalf Of The University Of Arizona

Supercapacitor electrode having highly oriented and closely packed graphene sheets and production process

Provided is a process for producing an electrolyte-impregnated laminar graphene structure for use as a supercapacitor electrode. The process comprises (a) preparing a graphene dispersion having multiple isolated graphene sheets dispersed in an electrolyte; and (b) subjecting the graphene dispersion to a forced assembly procedure, forcing the multiple graphene sheets to assemble into an electrolyte-impregnated laminar graphene structure, wherein the multiple graphene sheets are alternately spaced by thin electrolyte layers, less than 5 nm in thickness, and the graphene sheets are substantially aligned along a desired direction, and wherein the laminar structure has a physical density from 0.5 to 1.7 g/cm3 and a specific surface area from 50 to 3,300 m2/g, when measured in a dried state of the laminar structure with the electrolyte removed.

Order o(1) algorithm for first-principles calculation of transient current through open quantum systems

A fast algorithm is used to study the transient behavior due to the step-like pulse. This algorithm consists of two parts: the algorithm i reduces the computational complexity to t0n3 for large systems as long as t<n; the algorithm ii employs the fast multipole technique and achieves scaling t0n3whenever t<n2 beyond which it becomes t log2 n for even longer time.
The University Of Hong Kong

Graphene fet devices, systems, and methods of using the same for sequencing nucleic acids

Provided herein are devices, systems, and methods of employing the same for the performance of bioinformatics analysis. The apparatuses and methods of the disclosure are directed in part to large scale graphene fet sensors, arrays, and integrated circuits employing the same for analyte measurements.
Agilome, Inc.

Graphene oxide-nanodiamond composite, manufacturing method thereof, and nanofluid including the same

Disclosed herein is a composite comprising a graphene oxide and a nanodiamond that is chemically bonded on a surface of the graphene oxide.. .
Hyundai Motor Company

Graphene/polymer nanocomposites containing surface modified graphene

A method for enhancing an interaction between graphene nanoparticles and a poly(styrene-co-methylmethacrylate), including modifying graphene with nitric acid to form graphene nanoparticles surface modified with one or more oxygen functionalities, melt blending the poly(styrene-co-methylmethacrylate) and the modified graphene nanoparticles to obtain a nanocomposite, and exposing the nanocomposite to microwave irradiation to form defects in the graphene nanoparticles. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), and the graphene nanoparticles are surface modified with oxygen functionalities..
King Fahd Universityof Petroleum And Minerals

Polyethylene terephthalate-graphene nanocomposites

A nanocomposite material comprises polyethylene terephthalate (pet) as a base polymer and a nanoparticle that increases the strength of the base polymer.. .
The Board Of Regents For Oklahoma State University

Graphene-reinforced polymer matrix composites

A graphene-reinforced polymer matrix composite comprising an essentially uniform distribution in a thermoplastic polymer of about 10% to about 50% of total composite weight of particles selected from graphite microp articles, single-layer graphene nanoparticles, multilayer graphene nanoparticles, and combinations thereof, where at least 50 wt % of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction. The graphene-reinforced polymer matrix is prepared by a method comprising (a) distributing graphite microparticles into a molten thermoplastic polymer phase comprising one or more matrix polymers; and (b) applying a succession of shear strain events to the molten polymer phase so that the matrix polymers exfoliate the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction..
Rutgers, The State University Of New Jersey

Method of covalently bonding a polymer/surface modified graphene nanocomposite

A method for forming a blend including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the method includes melt mixing the poly(styrene-co-methylmethacrylate) and the graphene nanoparticles to obtain a nanocomposite and exposing the nanocomposite to microwave irradiation to bond the methyl methacrylate copolymer to the graphene nanoparticles, in which a content of the graphene nanoparticles is from 0.05 to 2 wt % based on the nanocomposites. A blend composition, including graphene nanoparticles and a poly(styrene-co-methylmethacrylate), where the graphene nanoparticles are dispersed in the poly(styrene-co-methylmethacrylate), the graphene nanoparticles are modified with microwave induced defects, and the free radicals of poly(styrene-co-methylmethacrylate) is bonded to the graphene nanoparticles at the defects..
King Fahd University Of Petroleum And Minerals

Nitrate reduction method, nitrate reduction catalyst, nitrate reduction electrode, fuel cell, and water treatment apparatus

A nitrate reduction method includes the step of reducing at least one type selected from a group of nitrates and nitrites at an active site included in a defect of graphene in a reduction reaction, wherein the graphene is a reduced product of graphene oxide, and the defect of the graphene is derived from a defect of the graphene oxide.. .
Japan Science And Technology Agency

Transfer two-dimensional film

A two-dimensional film (such as graphene) is formed on a surface of a growth substrate. A first surface of the two-dimensional film adheres to the growth substrate, and a second surface of the two-dimensional film is then coated with a conforming carrier layer comprising ethylene vinyl acetate.
Massachusetts Institute Of Technology

System and mass production of graphene platelets in arc plasma

A system and method for producing graphene includes a heating block, substrate, motor and collection device. The substrate is arranged about the heating block and is configured to receive heat from the heating block.
The George Washington University

Partially oxidized graphene and preparing same

The present invention relates to a partially oxidized graphene and a method for preparing the same. Since the partially oxidized graphene is prepared by subjecting the partially oxidized graphite to a high pressure homogenization, the exfoliation efficiency is excellent, the inherent characteristics of graphene are maintained even without using a reduction step after exfoliation, and the dispersibility thereof in organic solvents is excellent, and thus the invention can be applied to various fields..
Lg Chem, Ltd.

Vertical carbon nanotube and lithium ion battery chemistries, articles, architectures and manufacture

Features for rechargeable lithium ion batteries, the batteries optionally employing vertically aligned carbon nanotube scaffolding, are described. Methods of manufacture and a solid polymer electrolyte are described for 3-dimensional battery architectures using the vertically aligned carbon nanotubes.
California Institute Of Technology

Oled device, packaging method thereof, and packaging apparatus

The present invention provides an oled device, and a packaging method thereof and a packaging apparatus. The packaging method is for packaging an oled device formed on a base substrate, and includes: separating a graphene thin film formed on a copper foil from the copper foil; and packaging the oled device using the graphene thin film.
Ordos Yuansheng Optoelectronics Co., Ltd.

Solar cell with graphene-silicon quantum dot hybrid structure and manufacturing the same

Disclosed are a solar cell and a method of manufacturing the same. The solar cell with a graphene-silicon quantum dot hybrid structure according to an embodiment of the present disclosure includes a hybrid structure including a silicon quantum dot layer, in which a silicon oxide layer includes a plurality of silicon quantum dots; a doped graphene layer formed on the silicon quantum dot layer, and an encapsulation layer formed on the doped graphene layer; and electrodes formed on upper and lower parts of the hybrid structure..
University-industry Cooperation Group Of Kyung Hee University

Graphene frameworks for supercapacitors

The present disclosure provides supercapacitors that may avoid shortcomings of current energy storage technology. Provided herein are materials and fabrication processes of such supercapacitors.
The Regents Of The University Of California

Process for fabric of continuous graphitic fiber yarns

Multi-functional and high-performing fabric comprising a first layer of yarns woven to form the fabric wherein the yarns comprise at least one unitary graphene-based continuous graphitic fiber comprising at least 90% by weight of graphene planes that are chemically bonded with one another having an inter-planar spacing d002 from 0.3354 nm to 0.4 nm as determined by x-ray diffraction and an oxygen content less than 5% by weight. A majority of the graphene planes in such a continuous graphitic fiber are parallel to one another and parallel to a fiber axis direction.
Nanotek Instruments, Inc.

Method for producing graphene with controlled number of layers, and manufacturing electronic device using same

Disclosed is a method of producing graphene, which includes bringing a metal catalyst into contact with hydrogen gas (step a), bringing the metal catalyst in step a into contact with at least one selected from among a hydrocarbon gas, nitrogen gas, and an inert gas (step b), and forming graphene on the metal catalyst by bringing the metal catalyst in step b into contact with hydrogen gas and a hydrocarbon gas (step c), whereby the number of layers of graphene can be variously controlled as needed, regardless of the initial surface roughness of a metal catalyst layer, and also, the time required to form graphene can be shortened, thus reducing processing costs.. .
Center For Advanced Soft Electronics

Method for transferring a large-area graphene sheet

A method of transferring a graphene sheet comprising one or more layers of graphene formed on a metal film, such as a copper film, coating a surface of a metal or alloy substrate onto a target substrate. The method includes fixedly contacting the graphene sheet with a contacting surface of the target substrate by applying substantially uniform pressure and heat on a layered assembly.
King Abdulaziz University

Graphene-based ink compositions for three-dimensional printing applications

Electrically conducting, biocompatible, biodegradable tissue growth comprising graphene flakes in a polymeric matrix are provided.. .
Northwestern University

Scalable silicon anodes and the role of parylene films in improving electrode performance characteristics in energy storage systems

A lithium-based energy storage system includes an electrolyte and an electrode. The electrode has a conformal coating of parylene.
Rensselaer Polytechnic Institute

Production process for alkali metal-sulfur batteries having high volumetric and gravimetric energy densities

Process for producing an alkali metal-sulfur battery, comprising: (a) preparing a first conductive porous structure; (b) preparing a second conductive porous structure; (c) injecting or impregnating a first suspension into pores of the first conductive porous structure to form an anode electrode, wherein the first suspension contains an anode active material, an optional conductive additive, and a first electrolyte; (d) injecting or impregnating a second suspension into pores of the second conductive porous structure to form a cathode electrode, wherein the second suspension contains a cathode active material (selected from sulfur, lithium polysulfide, sodium polysulfide, sulfur-polymer composite, organo-sulfide, sulfur-carbon composite, sulfur-graphene composite, or a combination thereof), an optional conductive additive, and a second electrolyte; and (e) assembling the anode electrode, a separator, and a cathode electrode into the battery.. .

Alkali metal-sulfur batteries having high volumetric and gravimetric energy densities

Provided is an alkali metal-sulfur battery, comprising: (a) an anode; (b) a cathode having (i) a cathode active material slurry comprising a cathode active material dispersed in an electrolyte and (ii) a conductive porous structure acting as a 3d cathode current collector having at least 70% by volume of pores and wherein cathode active material slurry is disposed in pores of the conductive porous structure, wherein the cathode active material is selected from sulfur, lithium polysulfide, sodium polysulfide, sulfur-polymer composite, sulfur-carbon composite, sulfur-graphene composite, or a combination thereof; and (c) a separator disposed between the anode and the cathode; wherein the cathode thickness-to-cathode current collector thickness ratio is from 0.8/1 to 1/0.8, and/or the cathode active material constitutes an electrode active material loading greater than 15 mg/cm2, and the 3d porous cathode current collector has a thickness no less than 200 μm (preferably thicker than 500 μm).. .

Nanocomposite films and methods of preparation thereof

Nanocomposite films comprising carbon nanotubes dispersed throughout a polymer matrix and further comprising at least two surfaces with differing amounts of carbon nanotubes and differing electrical resistivity values are provided. Nanocomposite films comprising a polymer layer, a conductive nanofiller layer, and a polysaccharide layer having antistatic properties are provided.
King Fahd University Of Petroleum And Minerals

Pellicle and manufacturing the same

A method for manufacturing a pellicle includes: providing a supporting substrate; forming an oxide layer over the supporting substrate; forming a metal layer over the oxide layer; forming a graphene layer over the metal layer; and removing at least a portion of the supporting substrate and the oxide layer. An associated method includes: providing a supporting substrate; forming a first silicon carbide (sic) layer or a diamond layer over the supporting substrate; forming a graphene layer over the sic layer or the diamond layer; and removing at least a portion of the supporting substrate and the first silicon carbide (sic) layer or the diamond layer; wherein the pellicle is at least partially transparent to extreme ultraviolet (euv) radiation.
Taiwan Semiconductor Manufacturing Company Ltd.

Sliding engine component

A sliding engine component may include a plastic polymer-based composite layer on a substrate. The composite layer may include a matrix of plastic polymer-based material, and functionalised graphene nano platelets distributed throughout the matrix.
Mahle Engine Systems Uk Limited

Method for forming a graphene based material and a product

The invention relates to a method for forming graphene based material. According to the invention graphene oxide is functionalized via thiol-ene click chemistry so that the graphene oxide is prepared and dispersed in solvents, the graphene is reacted with thiol containing compound via thiol-ene click reaction between thiol group and double bond of aromatic rings in graphene oxide by one-step reaction, and the functionalized graphene oxide is formed.
Aalto University Foundation

Method for producing graphene with a controllable number of layers

A method for producing pristine graphene of controllable thickness including monolayer, bilayer and multilayer graphene via microwave irradiation assisted intercalation of graphite with dicarboxylic acids of various molecular chain lengths and subsequent exfoliation is disclosed. The average thickness of the graphene and the number of layers in the graphene produced by the method can be controlled by the molecular chain length of the dicarboxylic acid used for intercalation..
King Abdulaziz University

A synthesis of silica coated graphene functional hybrid material

A process for synthesis of silica coated graphene hybrid material comprising the steps of treating graphene oxide with ammonium ions to provide ammonium-activated graphene oxide; treating the ammonium-activated graphene oxide with a solution comprising silica precursors; and silane coupling agents that comprise functional groups, to provide self-assembly of silica nanoparticles on the surface of the ammonium-activated graphene oxide and covalent bonding between the nanoparticles and the surface to provide silica coated graphene oxide; and grafting of the functional groups on the surface of the silica coated graphene oxide to provide functionalized silica coated graphene oxide; and reducing the functionalized silica coated graphene oxide to provide functionalized silica coated graphene. Silica coated graphene hybrid material obtainable by this process..
Sht Smart High-tech Abö

Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material

A flexible, asymmetric electrochemical cell comprising: (a) a sheet of graphene paper as first electrode comprising nano graphene platelets having a platelet thickness less than 1 nm, wherein the first electrode has electrolyte-accessible pores; (b) a thin-film or paper-like first separator and electrolyte; and (c) a thin-film or paper-like second electrode which is different in composition than the first electrode; wherein the separator is sandwiched between the first and second electrode to form a flexible laminate configuration. The asymmetric supercapacitor cells with different ngp-based electrodes exhibit an exceptionally high capacitance, specific energy, and stable and long cycle life..
Nanotek Instruments, Inc.

Nannoparticle/porous graphene composite, synthesizing methods and applications of same

In one aspect, the invention relates to a method of synthesizing a nannoparticle/porous graphene composite, including dispersing porous graphene structures into a solvent to form a dispersion of the porous graphene structures therein, adding precursors of nanoparticles into the dispersion of the porous graphene structures in the solvent to form a precursor mixture, and treating the precursor mixture to form a nannoparticle/porous graphene composite. The composite is formed such that the nanoparticles are uniformly distributed in pores of the graphene structures.
Hk Graphene Technology Corporation

Graphene-enhanced anode particulates for lithium ion batteries

A nano graphene-enhanced particulate for use as a lithium-ion battery anode active material, wherein the particulate is formed of a single sheet of graphene or a plurality of graphene sheets and a plurality of fine anode active material particles with a size smaller than 10 μm. The graphene sheets and the particles are mutually bonded or agglomerated into the particulate with at least a graphene sheet embracing the anode active material particles.
Samsung Electronics Co., Ltd.

3d graphene transistor

A field effect transistor having a channel that comprises three-dimensional graphene foam. The subject matter of the invention concerns a three dimensional field-effect transistor having a channel based on graphene foam and the use of ionic liquid as a gate.
Tufts University

Resistive change element array using vertically oriented bit lines

The present disclosure is directed toward carbon based diodes, carbon based resistive change memory elements, resistive change memory having resistive change memory elements and carbon based diodes, methods of making carbon based diodes, methods of making resistive change memory elements having carbon based diodes, and methods of making resistive change memory having resistive change memory elements having carbons based diodes. The carbon based diodes can be any suitable type of diode that can be formed using carbon allotropes, such as semiconducting single wall carbon nanotubes (s-swcnt), semiconducting buckminsterfullerenes (such as c60 buckyballs), or semiconducting graphitic layers (layered graphene).
Nantero Inc.

Supercapacitor having highly conductive graphene foam electrode

A supercapacitor electrode comprising a solid graphene foam impregnated with a liquid or gel electrolyte, wherein the solid graphene foam is composed of multiple pores and pore walls, wherein pore walls contain a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.001% to 5% by weight of non-carbon elements wherein non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, chemically functionalized graphene, or a combination thereof, and the solid graphene foam, when measured in a dried state without electrolyte, has a physical density from 0.01 to 1.7 g/cm3, a specific surface area from 50 to 3,200 m2/g, a thermal conductivity of at least 200 w/mk per unit of specific gravity, and/or an electrical conductivity no less than 2,000 s/cm per unit of specific gravity.. .

Production a layer structure and layer structure

A production method for a layer structure, including providing a substrate, wherein at least a top surface of the substrate is made from a non-conductive material; depositing a catalyst structure onto the top surface of the substrate; depositing a graphene structure onto the catalyst structure; and at least partially removing the catalyst structure situated between the substrate and the graphene structure.. .
Robert Bosch Gmbh

Coating layer structure applied to machine element and manufacturing method thereof

A manufacturing method a coating layer structure applied to a machine element includes: forming a continuous graphene structure layer on a metal substrate; and forming a coating layer on the continuous graphene structure layer for cooperatively protecting the metal substrate. The continuous graphene structure layer is disposed between the metal substrate and the coating layer to act as a buffer structure between the metal substrate and the coating layer..
H & H-t Co., Ltd.

Hydraulic fracturing fluid

A fracturing fluid including a base fluid including salt water, a polymer, a crosslinker, and a nanomaterial. The crosslinker may include a zr crosslinker, a ti crosslinker, an al crosslinker, a borate crosslinker, or a combination thereof.
Saudi Arabian Oil Company

Graphene heat dissipation baking varnish

A graphene baking varnish consists of: graphene, fillers, at least one dispersants, binders, and solvent. The graphene includes graphene nanoflakes and accounts for 20 to70 wt % of solid composition of a graphene baking varnish.

Method for preparing sulfonated graphene from organic material and sulfonated graphene

The present invention relates to a method for preparing a sulfonated graphene from an organic material and to the sulfonated graphene prepared therefrom. The method comprises the following steps: a first contact step: a reaction medium containing oxidative sulfonating agent is allowed to come into contact with the organic macromolecular material at a first temperature; and, a second contact step: when the first contact step is completed, in same reaction medium, the reaction temperature is increased to a second temperature to allow for continued reaction, thus producing the sulfonated graphene..
Suzhou Graphene-tech Co., Ltd.

Method for preparing carbon powder from organic polymer material and detecting crystal morphology in organic polymer material

A method for preparing a carbon powder from an organic polymer material and a method for detecting the crystal morphology in the organic polymer material. A method for preparing a carbon material product comprises a carbonization step in which: a straight-chain polymer material containing nanoscale crystals is carbonized by using a strong oxidizing agent free of heavy metal ions, thus acquiring a nanoscale carbon material.
Suzhou Graphene-tech Co., Ltd.

Capacitor based automobile battery with backup lifepo charging system and charging circuit

A capacitor based automobile battery with backup lifepo charging system and charging circuit is disclosed. This invention improves on existing energy start modules (esm) in that it is designed as a full standalone replacement unit.

Homoepitaxial tunnel barriers with functionalized graphene-on-graphene and methods of making

This disclosure describes a method of making a tunnel barrier-based electronic device, in which the tunnel barrier and transport channel are made of the same material—graphene. A homoepitaxial tunnel barrier/transport device is created using a monolayer chemically modified graphene sheet as a tunnel barrier on another monolayer graphene sheet.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy

Growth of semiconductors on hetero-substrates using graphene as an interfacial layer

graphene is used as an interfacial layer to grow si and other semiconductors or crystalline materials including two-dimensional si and other structures on any foreign substrate that can withstand the growth temperature without the limitation matching condition typically required for epitaxial growth.. .
The University Of North Carolina At Charlotte

Semiconductor device with graphene encapsulated metal and method therefor

A method for forming a semiconductor structure includes forming a first metal layer over a first dielectric layer, forming a first graphene layer on at least one major surface of the first metal layer, and forming a second dielectric layer over the first metal layer and the first graphene layer. The method further includes forming an opening in the second dielectric layer which exposes the first metal layer, forming a second metal layer over the second dielectric layer and within the opening, and forming a second graphene layer on at least one major surface of the second metal layer, wherein the second graphene layer is also formed within the opening..
Nxp Usa, Inc.

Supercapacitor having an integral 3d graphene-carbon hybrid foam-based electrode

Provided is a supercapacitor having an anode, a cathode, a porous separator/electrolyte, wherein at least one of electrodes contains an integral 3d graphene-carbon hybrid foam composed of multiple pores and pore walls, wherein the pore walls contain single-layer or few-layer graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio from 1/100 to 1/2, wherein the few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d002 from 0.3354 nm to 0.40 nm and the graphene sheets contain a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.01% to 25% by weight of non-carbon elements wherein said non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.. .

High energy density and low leakage electronic devices

A magnetic capacitor includes a first electrode layer formed by depositing a first conducting material including graphene, a second electrode layer formed by depositing a second conducting material including graphene, and an insulator layer located between the first electrode layer and the second electrode layer. The magnetic capacitor further includes a first magnetized layer that includes one or more first ferro-magnetic elements that are magnetized to apply a first magnetic field to the insulator layer, and a second magnetized layer that includes one or more second ferro-magnetic elements that are magnetized to apply a second magnetic field to the insulator layer.

Electrical conductors and electronic devices including the same

An electrical conductor including a substrate, a first conductive layer including graphene, and a second conductive layer including a conductive metal nanowire, wherein the first conductive layer and the second conductive layer are disposed on the substrate, wherein the first conductive layer is disposed between the substrate and the second conductive layer or on the second conductive layer, wherein the first conductive layer has a first surface facing the second conductive layer and a second surface which is opposite to the first surface, and wherein, in the first surface and the second surface, the graphene is p-doped with a p-type dopant.. .
Samsung Electronics Co., Ltd.

Tester for detecting graphene security element in a security document, and the element detection method

A tester is described for detecting a graphene security element in a secure document, such as a banknote, an identification card, etc. As well as a method for detection of that element.

Graphene-based magnetic hall sensor for fluid flow analysis at nanoscale level

A method of detecting a particle comprises magnetizing a particle using an ac magnetic field; generating an ac voltage in a sensing device having a conductive substantially 2-dimensional lattice structure from the magnetized particle; superimposing a dc magnetic field on the generated ac voltage in the sensing device; and measuring an ac hall voltage at the sensing device.. .
International Business Machines Corporation

Graphene ultra-conductive casing wrap

A wrap configured to cover a surface of a casing surrounding a rotating member includes one or more graphene sheets and a matrix configured to stabilize the one or more graphene sheets. The matrix further configured to receive an adhesive or mechanical fastener and to bond to a surface of the casing using the adhesive or mechanical fastener.
General Electric Company

Methods of making diamond tables, cutting elements, and earth-boring tools

Methods of making cutting elements for earth-boring tools may involve placing a powdered mixture into a mold. The powdered mixture may include a plurality of core particles comprising a diamond material and having an average diameter of between 1 μm and 500 μm, a coating material adhered to and covering at least a portion of an outer surface of each core particle of the plurality of core particles, the coating material comprising an amine terminated group, and a plurality of nanoparticles selected from the group consisting of carbon nanotubes, nanographite, nanographene, non-diamond carbon allotropes, surface modified nanodiamond, nanoscale particles of beo, and nanoscale particles comprising a group viiia element adhered to the coating material.
Baker Hughes Incorporated

Transparent antistatic films

A transparent antistatic film of the present application includes a substrate and a transparent graphene coating, the substrate at least includes a first surface, and the transparent graphene coating is disposed above the first surface of the substrate. The transparent graphene coating has a surface resistance less than 1012 ohm/sq and a visible transmittance greater than 70% at wavelength of 550 nm, and the transparent graphene coating includes a plurality of surface modified graphene nanosheets and a carrier resin, wherein the plurality of surface modified graphene nanosheets is uniformly dispersed in the carrier resin.
Enerage Inc.

Process for preparing graphene nanoplatelets

Process for producing graphene nanoplatelets, comprising expanding flakes of intercalated graphite and collection of the same in a dispersing medium with forming of a dispersion that is subjected to exfoliation and size reduction treatment carried out by high pressure homogenization in a high shear homogenizer. A dispersion of graphene is obtained in the form of nanoplatelets, at least 90% of which have a lateral size (x, y) from 50 to 50,000 nm and a thickness (z) from 0.34 to 50 nm..
Directa Plus S.p.a.

Continuous process for preparing pristine graphene nanoplatelets

Process for producing pristine graphene nanoplatelets, comprising the expansion of flakes of intercalated graphite and the collection thereof in water with formation of a dispersion in the substantial absence of surfactants, followed by an exfoliation and size reduction treatment carried out using ultrasonication of the aqueous dispersion or using high pressure homogenization thereof in a high shear homogenizer. A dispersion of pristine graphene is obtained in the form of nanoplatelets, at least 90% of which have a lateral size (x, y) from 50 to 50,000 nm and a thickness (z) from 0.34 to 50 nm, having a c/o ratio ≧100:1 and a high electrical conductivity..
Directa Plus S.p.a.

Method of manufacturing graphene using doped carbon materials

Provided is a method of manufacturing graphene by unzipping doped carbon materials by an external stimulus and a graphene manufactured therefrom.. .
Korea Advanced Institute Of Science And Technology

Methods and systems for converting carbon dioxide into graphene

Methods for converting carbon dioxide (co2) into graphene are described. The methods include contacting a metal with gaseous carbon dioxide, and irradiating a surface of the metal with at least one laser beam to convert the gaseous carbon dioxide into graphene on the surface of the metal.
East China University Of Science And Technology

Graphene nanostructure-based pharmaceutical composition for preventing or treating neurodegenerative diseases

The present disclosure relates to a pharmaceutical composition for preventing or treating neurodegenerative diseases, the pharmaceutical composition including a graphene nanostructure as an active ingredient.. .
The Johns Hopkins University

Conductive component and electronic device including the same

A conductive component including: a substrate, a first layer comprising a plurality of island structures disposed on the substrate, wherein the island structures include graphene; and a second layer disposed on the first layer, wherein the second layer includes a plurality of conductive nanowires. Also, an electronic device including the conductive component..
Samsung Electronics Co., Ltd.

Low carrier phase noise fiber oscillators

The present disclosure relates to the design of fiber frequency comb lasers with low carrier phase noise. Examples of these low carrier phase noise oscillators can be constructed from both soliton and dispersion compensated fiber lasers via the use of intra-cavity amplitude modulators such as graphene modulators.
Imra America, Inc.

Lithium secondary battery

A lithium secondary battery includes: a negative electrode, a positive electrode, and an electrolyte disposed between the negative electrode and the positive electrode, wherein the negative electrode includes a silicon composite including silicon, a silicon oxide of the formula siox wherein 0<x<2 and disposed on the silicon, and a graphene disposed on the silicon oxide; or a carbonaceous composite including the silicon composite and a carbonaceous material, which is different from the graphene, and wherein at least one of the negative electrode and the electrolyte includes an ionic liquid containing a fluorosulfonyl imide anion, and a lithium salt.. .
Samsung Electronics Co., Ltd.

Secondary battery, graphene oxide, and manufacturing method thereof

To provide a manufacturing method of graphene oxide that allows mass production through a relatively simple process, at low costs, and with safety and efficiency. A hydrogen peroxide solution, sulfuric acid, and flake graphite are put in a reaction container, and the mixture is stirred to obtain expansion graphite.
Semiconductor Energy Laboratory Co., Ltd.

Carbon nanostructure device fabrication utilizing protect layers

Hall effect devices and field effect transistors are formed incorporating a carbon-based nanostructure layer such as carbon nanotubes and/or graphene with a sacrificial metal layer formed there over to protect the carbon-based nanostructure layer during processing.. .
International Business Machines Corporation

Graphene-ionic liquid composites

Method of making a graphene-ionic liquid composite. The composite can be used to make electrodes for energy storage devices, such as batteries and supercapacitors..
Vorbeck Materials Corporation

Method for manufacturing graphene composite film

The present invention provides a method for manufacturing a graphene composite film including preparing a zeolite suspension and a graphene oxide suspension containing graphene oxide, reducing the graphene oxide suspension until the graphene oxide is partially reduced to form partially-reduced graphene oxide, followed by adding the zeolite suspension and a surfactant into the partially-reduced graphene oxide suspension to form a composite solution, further reducing the composite solution until the partially-reduced graphene oxide is completely reduced to form graphene, and forming the composite solution into the graphene composite film on a substrate via plasma-enhanced atomizing deposition.. .
I-shou University

Graphene as a protective overcoat for magnetic media without the use of a nucleation layer

A graphene layer, used as an anti-corrosive protection medium for magnetic media, overcomes the existing problem of reducing the carbon overcoat layer thickness for magnetic media. Unlike the amorphous carbon that is currently used as an anti-corrosion layer, the impenetrability of graphene to all known gaseous substances enables full corrosion protection of the underlying magnetic medium with a layer of graphene that may be, for example, as thin as a single layer of graphene.
National University Of Singapore

Sensor

The present invention relates to a sensor for sensing hydrogen. The sensor of the present invention comprises: a core which reacts with hydrogen to change a resistance value; at least two electrodes connected to the core; and a variable resistor which is connected to at least one of the two electrodes and of which the resistance value changes in response to a control signal, wherein the core includes palladium having a thin film shape, and graphene which is applied on the palladium and has a thin film shape..
Korea Research Institute Of Standards And Science

An apparatus and associated methods

A percolation network of functionalised reduced graphene oxide flakes, the percolation network configured to allow for hopping of charge carriers between adjacent reduced graphene oxide flakes to enable a flow of charge carriers through the percolation network, and wherein the reduced graphene oxide flakes are functionalised to facilitate detectable changes in the flow of charge carriers in response to a stimulus to the percolation network.. .
Nokia Technologies Oy

Methods for atom incorporation into materials using a plasma afterglow

There are provided non-destructive methods for incorporating an atom such as n into a material such as graphene. The methods can comprise subjecting a gas comprising the atom to conditions to obtain a flowing plasma afterglow then exposing the material to the flowing plasma afterglow.
Valorisation-recherche, Limited Partnership

Crush-resistant proppant particulates for use in subterranean formation operations

Crush-resistant proppant particulates comprising proppant particulates at least partially coated with a polymeric material and inorganic particles, wherein the polymeric material comprises an organic polymeric material, or an inorganic polymeric material, or a combination thereof, wherein the organic polymeric material is selected from the group consisting of an organosilane, an organophosphonate, a polycarboxylic compound, a triazine, a resin comprising a silane coupling agent, and any combination thereof, wherein the inorganic polymeric material is aluminosilicate compound, and wherein the inorganic particle is between about 1 nm to about 10 μm in diameter and selected from the group consisting of alumina, boron carbide, boron nitride, silicate, glass, silicon carbide, silica, quartz, copper oxide, a microfiber, a nanofiber, core-shell, graphene, sodium silicate, sodium metasilicate, and any combination thereof.. .
Halliburton Energy Services, Inc.

Integral 3d graphene-carbon hybrid foam and devices containing same

Provided is an integral 3d graphene-carbon hybrid foam composed of multiple pores and pore walls, wherein the pore walls contain single-layer or few-layer graphene sheets chemically bonded by a carbon material having a carbon material-to-graphene weight ratio from 1/100 to 1/2, wherein the few-layer graphene sheets have 2-10 layers of stacked graphene planes having an inter-plane spacing d002 from 0.3354 nm to 0.40 nm and the graphene sheets contain a pristine graphene material having essentially zero % of non-carbon elements, or a non-pristine graphene material having 0.01% to 25% by weight of non-carbon elements wherein said non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof. Also provided are a process for producing the hybrid form, products containing the hybrid foam, and its applications..

Graphene-based nanosensor for identifying target analytes

A receptor capable of binding to the target analyte can be used in monitoring a target analyte in a bodily fluid or a sample. A microdevice in accordance with the disclosed subject matter can include a substrate and a conductance elements with receptors grafted on the surface of the conductance element.
The Trustees Of Columbia University In The City Of New York

An electrochemical device includes a cathode containing graphene-wrapped li2s nanoparticles. The graphene-wrapped li2s nanoparticles are prepared by a method including heating lithium metal, and a carbon-sulfur source or a carbon source and a sulfur source in a sealed container at a temperature to produce lithium vapors, and vapors of the carbon-sulfur source or vapors of the carbon source and vapors of the sulfur source; and cooling the sealed container to produce the graphene-wrapped li2s nanoparticles..
Uchicago Argonne, Llc

Synthesis and incorporation of graphene and/or metallized or metal oxide-modified graphene to improve organic solar cells and hydrogen fuel cells

A composition used to form the active layer of a solar cell or hydrogen fuel cell that comprises, consists of or consists essentially of a homogenous dispersion, poly(3-hexylthiophene-2,5-diyl) (p3ht) and 1-(3-methoxycarbonyl)propyl-1-phenyl[6,6]c61 (pcbm). The homogenous dispersion comprises, consists of or consists essentially of graphene oxide (go) or reduced graphene oxide (rgo) and sulfonated polystyrene (pss) or para-methoxy-n-methylamphetamine (pmma).
The Research Foundation For The State University Of New York

Photovoltaic cells

This invention relates to cells and devices for harvesting light. Specifically the cell comprises at least one electrode which comprises graphene or modified graphene and layer of a transition metal dichalcogenide in a vertical heterostructure.
The University Of Manchester

Multilayer graphene, forming the same, device including the multilayer graphene, and manufacturing the device

A multilayer graphene, a method of forming the same, a device including the multilayer graphene, and a method of manufacturing the device are provided. In the method of forming the multilayer graphene, a first graphene is formed on an underlayer, and then a multilayer graphene is formed by exposing two adjacent areas on the first graphene to a source gas.
Samsung Electronics Co., Ltd.

Cellular graphene films

The present disclosure provides supercapacitors that may avoid the shortcomings of current energy storage technology. Provided herein are electrochemical systems, comprising three dimensional porous reduced graphene oxide film electrodes.
The Regents Of The University Of California

Graphene/graphite polymer composite foam derived from emulsions stabilized by graphene kinetic trapping

The present disclosure provides advantageous graphene/graphite stabilized composites (e.g., graphene/graphite stabilized emulsion-templated foam composites), and improved methods for fabricating such graphene/graphite stabilized composites. More particularly, the present disclosure provides improved methods for fabricating pristine, graphene/graphite/polymer composite foams derived from emulsions stabilized by graphene/graphite kinetic trapping.
University Of Connecticut

Graphene oxide sensors

Articles and methods involving sensors and thin films suitable for use in sensors are generally provided. In some embodiments, the sensors may comprise a graphene oxide component and/or a thin film with a percolated structure.
Edwards Vacuum

Electrochemical etching apparatus

An electroplating etching apparatus includes a power to output current, and a container configured to contain an electrolyte. A cathode is coupled to the container and configured to fluidly communicate with the electrolyte.
International Business Machines Corporation

Substrate carrier that carries a substrate on each of two broad sides of the substrate carrier that face away from each other

A substrate carrier is configured to be arranged in a cvd or pvd reactor, in particular for the deposition of carbon nanotubes or graphene. The substrate carrier has a first broadside surface and a second broadside surface facing away from the first broad-side surface.
Aixtron Se

Composite of paracoccus denitrificans immobilized on modified graphene oxide and its preparation method and application

This invention provided a preparation method of the composite which was immobilized paracoccus denitrificans on modified graphene oxide and its application. The composite was obtained by following the steps below: 1) synthesis of graphene oxide; 2) synthesis of modified graphene oxide; 3) acclimatization and immobilization of paracoccus denitrificans.
Soochow University

Selectively permeable graphene oxide membrane

Described herein is a graphene material based membrane that provides selective resistance for solutes or gas while providing water permeability. A selectively permeable membrane comprising graphene oxide, reduced graphene oxide, and also functionalized or crosslinked between the graphene, that provides enhanced salt separation from water or gas permeability resistance, methods for making such membranes, and methods of using the membranes for dehydrating or removing solutes from water are also described..
Nitto Denko Corporation

Nitrogen-doped graphene assembly and preparing the same

The present invention relates to a nitrogen-doped 3-d porous graphene assembly and a method of preparing the same. The present invention provides a method of preparing a nitrogen-doped graphene assembly, the method including the steps of mixing a graphene oxide solution with a melamine solution, freezing the mixed solution of graphene oxide and melamine, drying the frozen solution in a frozen state to prepare a graphene assembly, and heating the graphene assembly at a predetermined temperature under the argon atmosphere for a predetermined to time, in which a mass ratio of the graphene oxide and the melamine in the mixed solution is 19:1 to 4:1.
Agency For Defense Development

Graphite-based carbon material useful as graphene precursor, as well as producing the same

P4 is a peak intensity of a (101) plane of the hexagonal graphite layer (2h) based on the x-ray diffraction method.. .

Particles comprising stacked graphene layers

According to the invention there is a particle including a plurality of stacked sub-structures, each sub-structure including a stack of graphene layers, in which the separation between successive stacked sub-structures is greater than the separation between successive graphene layers in each sub-structure.. .
Pertuus Research & Development Limited

Composite material used for catalyzing and degrading nitrogen oxide and preparation method and application thereof

The invention discloses a composite material used for catalyzing and degrading nitrogen oxide and its preparation method and application thereof. The invention of the hollow g-c3n4 nanospheres/reduced graphene oxide composite-polymer carbonized nanofiber material is prepared as follow: 1) the preparation of silica nanospheres; 2) the preparation of hollow g-c3n4 nanospheres; 3) the preparation of graphene oxide; 4) the preparation of surface modified hollow g-c3n4 nanoparticles preparation; 5) the preparation of composites; 6) the preparation of composite-polymer carbon nanofiber material.
Soochow University

Sorbent comprising carbon and nitrogen and methods of using the same

The present invention relates to sorbents including carbon and nitrogen. In various embodiments, the sorbent can remove mercury from a mercury-containing gas that includes sulfur(vi) such as so3 more efficiently than other sorbents.
Energy & Environmental Research Foundation

Adsorption material and manufacturing the same and adsorption heat pump

An adsorption material is provided, which includes a graphene scroll of a graphene sheet wrapping along an axis. The graphene scroll has a spiral shape at a cross-section perpendicular to the axis.
Industrial Technology Research Institute

Phenothiazine/phenothiazone -graphene oxide composite

A composite of graphene oxide and ptz that may further entrap a redox enzyme. This composite can be used for detecting the substrate of the redox enzyme in a sample or for producing an acid byproduct of the enzymatic reaction.
Yissum Research Development Company Of The Hebrew University Of Jerusalem Ltd.

Belt additional substance having self-heating and functionality using graphne and nano inorganic substance, and belt and manufacturing method using the same

A method for manufacturing a belt, which molds a heating member 13 by 20 to 98 parts by weight selecting at least one of nonferrous metals constituted by tourmaline, bentonite, pozzolan, mica, red clay, zeolite, magnesium oxide, white clay, calcium, and silica, 0.1 to 30 parts by weight selecting at least one of a type tio sol, ag sol, and zno having a particle size of 5 to 20 nm, graphene 01 to 10 parts by weight having a particle size of 0.20 to 2.25 nm, and functional metal colloidal 0.05 to 8 parts by weight having a size of 1 to 10 nm by selecting at least one of ag, au, zn pt, and y, 20 to 98 parts by weight are combined by selecting at least one of the nonferrous metals and thereafter, ground into particle sizes of 500 to 1500 meshes.. .

Stretchable electronic device and fabricating the same

A stretchable electronic device includes a flexible substrate, a conductive fiber pattern formed on the flexible substrate, the conductive fiber pattern having a repetitive circular structure, and a graphene material attached to the conductive fiber pattern.. .
Electronics And Telecommunications Research Institute

Systems and methods of graphene supported catalysts

Functionalized graphene comprising graphene, a metal dispersed throughout the graphene, wherein the metal comprises pt, rh, pd, ag, au, ni, os, ir, alloys thereof, oxides thereof, or mixtures thereof, and a first functional group covalently bonded to the graphene, wherein the first functional group comprises sulfonate, so3−, carboxylate, coo−, a tertiary amine, nr3+, where r is h, alkyl, aryl, or combinations thereof, polybenzimidazole (pbi), poly(ethylene oxide) (peo), polyphenylene oxide (ppo), polyaniline, or mixtures thereof are disclosed. Methods of manufacture are also disclosed..
Indiana University Research And Technology Corporation

Fuel cells using vertically free standing graphene and carbon nanosheets

This disclosure is about invention of fuel cells comprising vertically free-standing graphene and carbon nanosheets in the components, and methods of making thereof. Performance enhancement effect of the fuel cell is achieved by using: an electrically conducting component whose surface is covered by vertically free-standing graphene and carbon nanosheets; and/or a catalyst supporting structure made of vertically free-standing graphene and carbon nanosheets; and/or a catalyst based on vertically free-standing graphene and carbon nanosheets.

Semiconductor device

Performance of a semiconductor device is improved. graphene particles are mixedly added in a sealing resin covering a semiconductor chip.
Renesas Electronics Corporation

Method of intercalating insulating layer between metal catalyst layer and graphene layer and fabricating semiconductor device using the same

Methods of intercalating an insulating layer between a metal catalyst layer and a graphene layer and methods of fabricating a semiconductor device using the intercalating method are provided. The method of intercalating the insulating layer includes forming the graphene layer on the metal catalyst substrate, intercalating nitrogen ions between the metal catalyst substrate and the graphene layer, and forming the insulating layer between the metal catalyst substrate and the graphene layer by heating the metal catalyst substrate to chemically combine the nitrogen ions with the metal catalyst substrate..
Samsung Electronics Co., Ltd.

Electrochemical devices comprising carbon-based material

Disclosed herein are embodiments of an electrochemical device comprising graphene material made using embodiments of the method disclosed herein. Also disclosed is a graphene electrode comprising the graphene material made using embodiments of the method disclosed herein.
University Of Idaho

Method for fabricating ultra-capacity battery

An ultra-capacitor battery includes multiple cathodes, each including a first substrate having a first surface and a second opposite surface, multiple first combs are arranged perpendicularly to the first surface of the first substrate in the same direction at a first interval, and a graphene layer on the first combs and on the first substrate. The battery also includes multiple anodes, each including a body portion and multiple second combs arranged perpendicularly to the body portion in the same direction at a second interval.
Semiconductor Manufacturing International (beijing) Corporation

Lightweight fire detection systems and methods

According to an embodiment, a heat detection system includes a graphene conductor, a housing containing the graphene conductor; and, a signal wire connected in electrical communication with the graphene conductor, the signal wire having a length that extends from the housing.. .
The Boeing Company

Chemical-free production of graphene-reinforced polymer matrix composites

Provided is a simple, fast, scalable, and environmentally benign method of producing a graphene-reinforced polymer matrix composite directly from a graphitic material, the method comprising: (a) mixing multiple particles of a graphitic material and multiple particles of a solid polymer carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; (b) operating the energy impacting apparatus with a frequency and an intensity for a length of time sufficient for peeling off graphene sheets from the graphitic material and transferring the graphene sheets to surfaces of solid polymer carrier material particles to produce graphene-coated or graphene-embedded polymer particles inside the impacting chamber; and (c) forming graphene-coated or graphene-embedded polymer particles into the graphene-reinforced polymer matrix composite. Also provided is a mass of the graphene-coated or graphene-embedded polymer particles produced by this method..

Preparation graphene

Disclosed herein is a preparation method of graphene, capable of preparing graphene having a smaller thickness and a large area, and with reduced defect generation, by a simplified process. The preparation method of graphene includes forming dispersion including a carbon-based material including unoxidized graphite, and a dispersant; and continuously passing the dispersion through a high pressure homogenizer including an inlet, an outlet, and a micro-channel for connection between the inlet and the outlet, having a diameter in a micrometer scale, wherein the carbon-based material is exfoliated, as the material is passed through the micro-channel under application of a shear force, thereby forming graphene having a thickness in nanoscale..
Lg Chem, Ltd.

Ultrasound probe with optimized thermal management

An ultrasound probe (1) comprising a housing (6), a transducer assembly (301) operable to transmit ultrasonic energy towards a zone (801) of the probe adapted to be acoustically coupled to an object or area of interest, a cooling system comprising a heat transfer device (2, 5) arranged to transfer heat generated by the transducer assembly to one or more regions or areas (103, 7) located outside such transducer assembly. The heat transfer device comprises graphene..
Esaote S.p.a.

Methods and systems for heating and cooling seats and other user items utilizing thermally conductive sheet with one or more thermoelectric devices

A cooling and heating system for seats and other user items utilizes a thermally conductive sheet with one or more thermoelectric devices. This thermally conductive sheet has high thermal conductivity and is flexible, and may comprise polyimide, graphite, pgs graphite, carbon fiber, or more advanced materials such as graphene or carbon nanotubes or other high thermal conductivity material such as copper or aluminum sheet or mesh.
Novus Energy Technologies, Inc.

Temperature-adjusting hat

A temperature-adjusting hat, having a hat having an inside for accommodating a head and an outside, a thermoelectric couple having a first side and a second side having a temperature differential between the first and second sides, and wherein the first side is positioned near the inside of the hat, a power source connected to the thermoelectric couple, and one or more heat pipes connected to the second side, extending over the outside of the hat, wherein the one or more heat pipes has a constant temperature along a length. The hat may have a heat wicking layer in communication with the one or more heat pipes, configured to distribute a temperature from the heat pipes across the outside of the hat.

Method for fabricating graphene electrode

A graphene electrode, an energy storage device employing the same, and a method for fabricating the same are provided. The graphene electrode includes a metal foil, a non-doped graphene layer, and a hetero-atom doped graphene layer.
Industrial Technology Research Institute

Cathode for lithium batteries

The present invention relates to electrode composite, comprising: 0.1 wt % to 20 wt % graphene; 0.1 wt % to 20 wt % carbon black and 2 wt % to 20 wt % binder, the rest being an active material of lithium transition metal oxide having a spinel structure, such as lini0.5mn1.5o4 or limn2o4, or of a lithium transition metal compound having an olivine structure, such as lifepo4, and presenting the electrode a thickness equal or greater than 40 μm. The invention also relates to a cathode comprising a current collector and disposed on the current collector said electrode composite, to a lithium ion cell and to a battery module comprising said cathode, and to a battery pack comprising at least one battery module for use in devices such as electric vehicles, portable electric devices and stationary energy storage devices for renewable sources.
Repsol, S.a.

Highly conducting and oriented graphene film and production process

A process for producing a highly conducting film of conductor-bonded graphene sheets that are highly oriented, comprising: (a) preparing a graphene dispersion or graphene oxide (go) gel; (b) depositing the dispersion or gel onto a supporting solid substrate under a shear stress to form a wet layer; (c) drying the wet layer to form a dried layer having oriented graphene sheets or go molecules with an inter-planar spacing d002 of 0.4 nm to 1.2 nm; (d) heat treating the dried layer at a temperature from 55° c. To 3,200° c.

Gaming devices with graphene ink enabled features

A gaming table includes graphene ink enabled electronic features such as conductors, light or sound emitters, light detectors, touch or object detectors or displays. Conductive graphene ink may be printed on a gaming table fabric or felt which forms a playing surface of the gaming table.
Deq Systems Corporation

Hybrid fiber optic and graphene cable

An optical cable can include one or more graphenic elements disposed about one or more optically transmissive fibers. A graphenic element can be a coating of graphene or amorphous graphite, a ribbon of graphene or amorphous graphite, or fibers of graphene or amorphous graphite.
Halliburton Energy Services, Inc.

Method for preparing graphene/pedot:pss solution and preparing substrate having graphene/pedot:pss composite transparent conductive film

A method for preparing a graphene/pedot:pss solution and preparing a substrate having a graphene/pedot:pss composite transparent conductive film of the disclosure use graphene and pedot:pss solution for preparing a graphene/pedot:pss solution used for preparing a transparent conductive film. The sources of the materials are wide and the cost is cheap.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Chemical-free production of graphene materials

A method of producing isolated graphene sheets directly from a graphitic material, comprising: a) mixing multiple particles of a graphitic material and multiple particles of a solid carrier material to form a mixture in an impacting chamber of an energy impacting apparatus; b) operating the impacting apparatus for peeling off graphene sheets from the graphitic material and transferring these graphene sheets to surfaces of solid carrier material particles to produce graphene-coated solid particles inside the impacting chamber; c) separating the graphene sheets from the solid carrier material particle surfaces to recover isolated graphene sheets. The method enables production of graphene sheets directly from a graphitic material without going through a chemical intercalation or oxidation procedure.

Preparation graphene and dispersed composition of graphene

Disclosed herein are a preparation method of graphene, capable of easily preparing a graphene flake having a smaller thickness and a large area, and a dispersed composition of graphene obtained using the same. The preparation method of graphene includes applying a physical force to dispersion of a carbon-based material including graphite or a derivative thereof, and a dispersant, wherein the dispersant includes a mixture of plural kinds of polyaromatic hydrocarbon oxides, containing the polyaromatic hydrocarbon oxides having a molecular weight of 300 to 1000 in a content of 60% by weight or more, and the graphite or the derivative thereof is formed into a graphene flake having a thickness in nanoscale under application of a physical force..
Lg Chem, Ltd.

Method of making a high efficiency electrical wire

In a method of treating a material solvent, brass granules, copper granules, and carbon nanotubes are mixed, in the absence of silver, iron pyrite, and graphene, to form a first mixture. The first mixture is then added to a second mixture of brass and copper granules.
Bourque Industries, Inc.

Porous graphene based composite membranes for nanofiltration, desalination, and pervaporation

Membranes of the present disclosure possess very thin barrier layers, with high selectivity, high throughput, low fouling, and are long lasting. The membranes include graphene and/or graphene oxide barrier layers on a nanofibrous supporting scaffold.
The Research Foundation For The State University Of New York

Method of making highly flexible and conductive printed graphene-based laminate for wireless wearable communications

A printed graphene-based laminate for wireless wearable communications can be processed at low temperature so that it is compatible with heat-sensitive flexible materials like papers and textiles. The printed graphene-based laminate is of high conductivity, high flexibility, light weight and low cost, making it perfect candidate for wireless wearable devices.

Wireless earpieces utilizing graphene based microphones and speakers

A system, method, and wireless earpiece. The wireless earpiece includes a frame supporting circuitry of the wireless earpiece.
Bragi Gmbh

Graphene based mesh for use in portable electronic devices

A system, method, and wireless earpiece. The wireless earpiece includes a frame supporting circuitry of the wireless earpiece the frame includes an extension composed of graphene shaped to fit in to an ear canal of a user.
Bragi Gmbh

Portable electronic device

A portable battery-powered electronic device including a battery, a microprocessor and a display screen is provided. The device is characterised in that it further includes an integral rechargeable battery-charging unit connected to the battery comprising: a supercapacitor comprised of one or more sheets of graphene or a graphene-containing material; a power module adapted to provide up to 40 amps to the supercapacitor from a source of alternating current rated at 100 volts or above; an output converter adapted to deliver direct current power from the supercapacitor to the battery; and a control module adapted to control the delivery of the direct current power from the supercapacitor to the battery.
Zapgo Ltd

Negative active material for sodium secondary battery, preparing thereof and sodium secondary battery using the same

Sodium negative active material may have a metal phosphate having a uniform size distribution structures to graphene surface. The negative active material is a metal or a metal oxide precursor in a graphite dispersion solution; and the addition of phosphate, and then applying a microwave, can be produced by heat treatment..
University-industry Foundation, Yonsei University

Graphene transistor and related methods

A method and structure for providing high-quality transferred graphene layers for subsequent device fabrication includes transferring graphene onto a hydrophobic surface of a hydrophobic layer and performing a thermal treatment process. In various embodiments, a substrate including an insulating layer is provided, and a hydrophobic layer is formed over the insulating layer.
Taiwan Semiconductor Manufacturing Company, Ltd.

Method for preparing an electrically conductive stratified composite structure

The invention relates to a process for preparing an electrically conductive composite film, in particular in the form of a self-supported film or of a prepreg, comprising at least one thermoplastic polymer resin and electrically conductive particles chosen from a) graphene, carbon nanotubes, carbon nanofibres, and mixtures thereof; and b) filiform metal nanoparticles; to a process for preparing an electrically conductive laminated composite structure comprising such an electrically conductive composite film; to said electrically conductive composite film, to said electrically conductive laminated composite structure, and also to the uses thereof.. .
Universite Toulouse Iii - Paul Sabatier

Metal nanowire having core-shell structure coated with graphene, and manufacturing method therefor

The present invention relates to a method for manufacturing a nanowire of a core-shell structure including a metal nanowire core and a graphene shell, comprising the steps of: providing a metal nanowire; and coating the metal nanowire with graphene by a plasma chemical vapor deposition method. In addition, the present invention relates to: a nanowire having a core-shell structure including a metal nanowire core and a graphene shell; and a transparent electrode formed from the nanowire.
Daegu Gyeongbuk Institute Of Science And Technology

Alumina composite ceramic composition and manufacturing the same

Provided is an alumina composite ceramic composition which has electrical insulation properties as well as better mechanical strength and thermal conductivity than a typical alumina-based material. Thus, the alumina composite ceramic composition is promising for a material of a substrate or an insulating package of an electronic device.
Korea Institute Of Ceramic Engineering & Technology

Functional graphene nanostructure devices from living polymers

The disclosure provides methods to synthesize graphene based hetero-nanostructures, the graphene based hetero-nanostructures resulting therefrom, and devices comprising the graphene based hetero-nanostructures thereof.. .
The Regents Of The University Of California

Porous graphene member, manufacturing same, and manufacturing same using the method

Disclosed are a porous graphene member having through-holes formed therein, a method for manufacturing the porous graphene member, and an apparatus for manufacturing the porous graphene member using the method. The method comprises: introducing a carbon source and a substitution reaction source into a deposition furnace; thermally decomposing the carbon source and the substitution reaction source simultaneously to generate carbon atoms and substitution atoms, respectively, wherein the carbon atoms are deposited on a substrate present within the deposition furnace to form a graphene film consisting of a monoatomic layer structure, and during the deposition of carbon atoms, the substitution atoms not only interfere with covalent bonds between the carbon atoms to cause crystal defects, but also substitute for parts of the carbon atoms to in situ form through-holes in the graphene, thereby creating the porous graphene member; and releasing the porous graphene member from the substrate..
Korea Institute Of Energy Research

Sorption and separation of various materials by graphene oxides

Methods of sorption of various materials from an environment are disclosed herein. Embodiments of the materials include radioactive elements chlorates, perchlorates, organohalogens, and combinations thereof.
Zonko, Llc

Method for manufacturing porous graphene filter, porous graphene filter manufactured using same, and filter apparatus using porous graphene filter

Disclosed herein are porous graphene filters, each consisting of a carbon monoatomic layer having small holes formed therein during the graphene formation, a plurality of the porous graphene filters being used to selectively filter a specific material from a mixture of at least two different materials, a method for manufacturing the same, and a filtering apparatus using the same. The method comprises: separately forming a first graphene filter having a first hole of a first size and a second graphene filter having a second hole of a second size, during deposition of carbon atoms generated from a carbon source for formation of graphene, by substituting the carbon atoms, in part, with a substitution atom generated from a substitution source, the second size being larger than the first size; and arranging the first graphene filter and the second graphene filter in a filter body equipped with an inlet and an outlet..
Korea Institute Of Energy Research

Graphene based ultrasound generation

A system, method, and graphene device. The graphene devices includes one or more graphene layers configured to emit a wave to a site of a body of a user.
Bragi Gmbh

Process for silicon nanowire-graphene hybrid mat

Disclosed is a process for producing graphene-silicon nanowire hybrid material, comprising: (a) preparing a catalyst metal-coated mixture mass, which includes mixing graphene sheets with micron or sub-micron scaled silicon particles to form a mixture and depositing a nano-scaled catalytic metal onto surfaces of the graphene sheets and/or silicon particles; and (b) exposing the catalyst metal-coated mixture mass to a high temperature environment (preferably from 300° c. To 2,000° c., more preferably from 400° c.

Method of making and using flexible elastic nanotube composite

A method of fabricating and using of flexible elastic photo-thermoelectric or thermoelectric cells is being presented, where the thermoelectric materials have been used in nanohybrid (pristine form). The casing of the cells is made up of flexible elastic materials (plastic, rubber).

Layered body and electronic element

A laminated body includes: a substrate portion composed of silicon carbide; and a graphene film disposed on a first main surface of the substrate portion, the graphene film having an atomic arrangement oriented with respect to an atomic arrangement of the silicon carbide of the substrate portion. A region in which a value of g′/g in raman spectrometry is not less than 1.2 is not less than 10% in an area ratio in an exposed surface of the graphene film, the exposed surface being a main surface of the graphene film opposite to the substrate portion..

Growing graphene on substrates

Embodiments described herein provide methods and apparatus for forming graphitic carbon such as graphene on a substrate. The method includes providing a precursor comprising a linear conjugated hydrocarbon, depositing a hydrocarbon layer from the precursor on the substrate, and forming graphene from the hydrocarbon layer by applying energy to the substrate.





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