Patent
US 9,601,226HIGH-DENSITY 3D GRAPHENE-BASED MONOLITH AND RELATED MATERIALS, METHODS, AND DEVICES
Marcus A. Worsley
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,601,226Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composition comprising at least one high-density graphene- based monolith, said monolith comprising a three-dimensional structure of restacked g raphene sheets directly crosslinked by covalent carbon bonds, wherein the monolith has an electrical conductivity of at least 500 S/cm and a density of at least 0.2 g/cm 3, and wherein less than 10 % of the graphene sheets are interconnected only by van der Waals force, and wherein the monolith has a Young's modulus of at least 5 GPa.
The composition of claim 1, wherein the surfaces of the graphene sheets are free of carbon nanoparticles.
The composition of claim 1, wherein in the monolith at least 70 % of the covalent carbon bonds between the graphene sheets are sp 2 bonds.
The composition of claim 1, wherein the monolith has a density of at least 0.5 g/cm 3.
The composition of claim 1, wherein the monolith has an electrical conductivity of at least 1000 S/cm.
The composition of claim 1, wherein the monolith has a failure stress of at least 0.5 GPa.
The composition of claim 1, wherein the monolith has a compressive strength of at least 100 MPa.
The composition of claim 1, wherein the monolith has (i) a density of at least 0.5 g/cm 3, (ii) an electrical conductivity of at least 1000 S/cm, and (iii) a Young's modulus of at least 5 GPa.
(Withdrawn-Currently Amended) A method for obtaining the composition of claim 1, comprising: preparing a reaction mixture comprising a suspension and at least one catalyst, said suspension is selected from a graphene oxide (GO) suspension and a carbon nanotube suspension; SVG 13844340.02-19-2016.IKUAK₆L₀RXEAPX4.CLM.1.svg 0.16 3.24 Black and white drying the wet gel to produce a dry gel, said drying step is substantially free of supercritical drying and freezing drying; and pyrolyzing the dry gel to produce the composition comprising a high-density graphene- based monolith or a high density carbon nanotube based monolith.
A device comprising the composition of claim 1 at least one high density graphene based monolith, said monolith comprising a three dimensional structure of graphene sheets crosslinked by covalent carbon bonds and having a density of at least 0. 2 g/cm 4.
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Layer stacks claimed or described, ordered top of device to substrate.
device comprising high-density graphene-based monolith
Materials described outside the worked examples.
high-density graphene-based monolith
graphene oxide (GO)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Electrical Conductivity | ≥ 500 S/cm | high-density graphene-based monolith |
Density | ≥ 0.2 g/cm3 |
Patent
Atlas literature
Patent
US 9,601,226Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composition comprising at least one high-density graphene- based monolith, said monolith comprising a three-dimensional structure of restacked g raphene sheets directly crosslinked by covalent carbon bonds, wherein the monolith has an electrical conductivity of at least 500 S/cm and a density of at least 0.2 g/cm 3, and wherein less than 10 % of the graphene sheets are interconnected only by van der Waals force, and wherein the monolith has a Young's modulus of at least 5 GPa.
The composition of claim 1, wherein the surfaces of the graphene sheets are free of carbon nanoparticles.
The composition of claim 1, wherein in the monolith at least 70 % of the covalent carbon bonds between the graphene sheets are sp 2 bonds.
The composition of claim 1, wherein the monolith has a density of at least 0.5 g/cm 3.
The composition of claim 1, wherein the monolith has an electrical conductivity of at least 1000 S/cm.
The composition of claim 1, wherein the monolith has a failure stress of at least 0.5 GPa.
The composition of claim 1, wherein the monolith has a compressive strength of at least 100 MPa.
The composition of claim 1, wherein the monolith has (i) a density of at least 0.5 g/cm 3, (ii) an electrical conductivity of at least 1000 S/cm, and (iii) a Young's modulus of at least 5 GPa.
(Withdrawn-Currently Amended) A method for obtaining the composition of claim 1, comprising: preparing a reaction mixture comprising a suspension and at least one catalyst, said suspension is selected from a graphene oxide (GO) suspension and a carbon nanotube suspension; SVG 13844340.02-19-2016.IKUAK₆L₀RXEAPX4.CLM.1.svg 0.16 3.24 Black and white drying the wet gel to produce a dry gel, said drying step is substantially free of supercritical drying and freezing drying; and pyrolyzing the dry gel to produce the composition comprising a high-density graphene- based monolith or a high density carbon nanotube based monolith.
A device comprising the composition of claim 1 at least one high density graphene based monolith, said monolith comprising a three dimensional structure of graphene sheets crosslinked by covalent carbon bonds and having a density of at least 0. 2 g/cm 4.
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-2- 4819-8944-9262.1 Atty. Dkt. No. 093866-295 1 canceled
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31-43. -4- 4819-8944-9262.1 canceled
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Layer stacks claimed or described, ordered top of device to substrate.
device comprising high-density graphene-based monolith
Materials described outside the worked examples.
high-density graphene-based monolith
graphene oxide (GO)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Electrical Conductivity | ≥ 500 S/cm | high-density graphene-based monolith |
Density | ≥ 0.2 g/cm3 |
Patent
Atlas literature
Patent
US 9,601,226Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composition comprising at least one high-density graphene- based monolith, said monolith comprising a three-dimensional structure of restacked g raphene sheets directly crosslinked by covalent carbon bonds, wherein the monolith has an electrical conductivity of at least 500 S/cm and a density of at least 0.2 g/cm 3, and wherein less than 10 % of the graphene sheets are interconnected only by van der Waals force, and wherein the monolith has a Young's modulus of at least 5 GPa.
The composition of claim 1, wherein the surfaces of the graphene sheets are free of carbon nanoparticles.
The composition of claim 1, wherein in the monolith at least 70 % of the covalent carbon bonds between the graphene sheets are sp 2 bonds.
The composition of claim 1, wherein the monolith has a density of at least 0.5 g/cm 3.
The composition of claim 1, wherein the monolith has an electrical conductivity of at least 1000 S/cm.
The composition of claim 1, wherein the monolith has a failure stress of at least 0.5 GPa.
The composition of claim 1, wherein the monolith has a compressive strength of at least 100 MPa.
The composition of claim 1, wherein the monolith has (i) a density of at least 0.5 g/cm 3, (ii) an electrical conductivity of at least 1000 S/cm, and (iii) a Young's modulus of at least 5 GPa.
(Withdrawn-Currently Amended) A method for obtaining the composition of claim 1, comprising: preparing a reaction mixture comprising a suspension and at least one catalyst, said suspension is selected from a graphene oxide (GO) suspension and a carbon nanotube suspension; SVG 13844340.02-19-2016.IKUAK₆L₀RXEAPX4.CLM.1.svg 0.16 3.24 Black and white drying the wet gel to produce a dry gel, said drying step is substantially free of supercritical drying and freezing drying; and pyrolyzing the dry gel to produce the composition comprising a high-density graphene- based monolith or a high density carbon nanotube based monolith.
A device comprising the composition of claim 1 at least one high density graphene based monolith, said monolith comprising a three dimensional structure of graphene sheets crosslinked by covalent carbon bonds and having a density of at least 0. 2 g/cm 4.
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-2- 4819-8944-9262.1 Atty. Dkt. No. 093866-295 1 canceled
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Layer stacks claimed or described, ordered top of device to substrate.
device comprising high-density graphene-based monolith
Materials described outside the worked examples.
high-density graphene-based monolith
graphene oxide (GO)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Electrical Conductivity | ≥ 500 S/cm | high-density graphene-based monolith |
Density | ≥ 0.2 g/cm3 |
Patent
Atlas literature
Patent
US 9,601,226Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A composition comprising at least one high-density graphene- based monolith, said monolith comprising a three-dimensional structure of restacked g raphene sheets directly crosslinked by covalent carbon bonds, wherein the monolith has an electrical conductivity of at least 500 S/cm and a density of at least 0.2 g/cm 3, and wherein less than 10 % of the graphene sheets are interconnected only by van der Waals force, and wherein the monolith has a Young's modulus of at least 5 GPa.
The composition of claim 1, wherein the surfaces of the graphene sheets are free of carbon nanoparticles.
The composition of claim 1, wherein in the monolith at least 70 % of the covalent carbon bonds between the graphene sheets are sp 2 bonds.
The composition of claim 1, wherein the monolith has a density of at least 0.5 g/cm 3.
The composition of claim 1, wherein the monolith has an electrical conductivity of at least 1000 S/cm.
The composition of claim 1, wherein the monolith has a failure stress of at least 0.5 GPa.
The composition of claim 1, wherein the monolith has a compressive strength of at least 100 MPa.
The composition of claim 1, wherein the monolith has (i) a density of at least 0.5 g/cm 3, (ii) an electrical conductivity of at least 1000 S/cm, and (iii) a Young's modulus of at least 5 GPa.
(Withdrawn-Currently Amended) A method for obtaining the composition of claim 1, comprising: preparing a reaction mixture comprising a suspension and at least one catalyst, said suspension is selected from a graphene oxide (GO) suspension and a carbon nanotube suspension; SVG 13844340.02-19-2016.IKUAK₆L₀RXEAPX4.CLM.1.svg 0.16 3.24 Black and white drying the wet gel to produce a dry gel, said drying step is substantially free of supercritical drying and freezing drying; and pyrolyzing the dry gel to produce the composition comprising a high-density graphene- based monolith or a high density carbon nanotube based monolith.
A device comprising the composition of claim 1 at least one high density graphene based monolith, said monolith comprising a three dimensional structure of graphene sheets crosslinked by covalent carbon bonds and having a density of at least 0. 2 g/cm 4.
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8-10. canceled
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-2- 4819-8944-9262.1 Atty. Dkt. No. 093866-295 1 canceled
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31-43. -4- 4819-8944-9262.1 canceled
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Layer stacks claimed or described, ordered top of device to substrate.
device comprising high-density graphene-based monolith
Materials described outside the worked examples.
high-density graphene-based monolith
graphene oxide (GO)
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Electrical Conductivity | ≥ 500 S/cm | high-density graphene-based monolith |
Density | ≥ 0.2 g/cm3 |
carbon nanotube
ammonium hydroxide
NH₄OH
Youngs Modulus | ≥ 5 GPa | high-density graphene-based monolith |
Failure Stress | ≥ 0.5 GPa | high-density graphene-based monolith |
Compressive Strength | ≥ 100 MPa | high-density graphene-based monolith |
Pressure | ≥ 1 MPa | — |
carbon nanotube
ammonium hydroxide
NH₄OH
Youngs Modulus | ≥ 5 GPa | high-density graphene-based monolith |
Failure Stress | ≥ 0.5 GPa | high-density graphene-based monolith |
Compressive Strength | ≥ 100 MPa | high-density graphene-based monolith |
Pressure | ≥ 1 MPa | — |
carbon nanotube
ammonium hydroxide
NH₄OH
Youngs Modulus | ≥ 5 GPa | high-density graphene-based monolith |
Failure Stress | ≥ 0.5 GPa | high-density graphene-based monolith |
Compressive Strength | ≥ 100 MPa | high-density graphene-based monolith |
Pressure | ≥ 1 MPa | — |
carbon nanotube
ammonium hydroxide
NH₄OH
Youngs Modulus | ≥ 5 GPa | high-density graphene-based monolith |
Failure Stress | ≥ 0.5 GPa | high-density graphene-based monolith |
Compressive Strength | ≥ 100 MPa | high-density graphene-based monolith |
Pressure | ≥ 1 MPa | — |