Patent
US 9,534,319Title: DISSOLUTION OF GRAPHITE, GRAPHITE OXIDE AND GRAPHENE NANORIBBONS IN SUPERACID S O LU-
TOUR, James M., PASQUALI, Matteo, BEHABTU, Natnael, KOSYNKIN, Dmitry V. et al.
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,534,319Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 3 0 W O 2 0 10/0 9 6 6 6 5 A l IIIlll|IIIIII iII I il|i||||||||||||||||||||||1 ||||1 ||||I|i|||||||||||| II||I|| II|||||||| GM, KE, LS, MW, MZ, NA, SD, …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The A method of claim 24, further preparing a solution, said method comprising: providing the a carbon material selected from the group consisting of graphite, graphite oxide, and combinations thereof; and dissolving the carbon material in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the carbon material in the solvent, wherein the mixing results in exfoliation of the carbon material to form an exfoliated carbon material in the solution, and wherein the exfoliated carbon material is selected from the group consisting of graphene, oxidized graphene, graphene nanoribbons, oxidized graphene nanoribbons, reduced graphene nanoribbons, and combinations thereof.
The method of claim [1] 24, wherein the mixing comprises stirring the graphite oxide carbon material in the solvent.
The method of claim [1] 24, wherein the solvent comprises chlorosulfonic acid.
The method of claim [1] 24, wherein the solvent comprises at least chlorosulfonic acid and sulfuric acid.-3-ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352
The method of claim [1] 24, further comprising: centrifuging the solution; and separating the solution from any undissolved carbon material graphite oxide.
The method of claim [1] 24, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim [1] 24, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
The method of claim 7, wherein forming comprises a process selected from the group consisting of extruding the solution through a spinneret, extruding the solution through a needle, extruding the solution through a film die, spreading the solution into a film, casting the solution into a mold, and combinations thereof.
The method of claim 7, wherein removing comprises a process selected from the group consisting of coagulation, evaporation, heating under vacuum and combinations thereof.
The method of claim [1] 24, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is an isotropic solution.
The method of claim 11, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; -4- ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352 wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim 11, further comprising: depositing the solution on a surface; and removing the solvent to form a film comprising the exfoliated carbon material oxidized g raphene on the surface.
The method of claim 11, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is a liquid crystalline solution.
The method of claim 15, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
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A method comprising: dissolving graphite oxide in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the graphite oxide in the solvent, and wherein the mixing results in exfoliation of the graphite oxide to form an oxidized graphene in the solution.
The method of claim 24, further comprising: removing the solvent; and isolating the oxidized graphene.
. The method of claim 24, wherein the oxidized about ten layers. -7-mixing comprises high shear mixing the carbon DOCKET NO. PATENT 1 1321-P₁₈₃WOUS mixing comprises sonicating the carbon material graphene comprises from about one layer to
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. The method of claim [1] 24, wherein the material graphite oxide in the solvent. -6- ATTORNEY Serial No. 13/202,352
. The method of claim [1] 24, wherein the graphite oxide in the solvent.
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Materials described outside the worked examples.
graphite
graphite oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 300–900 nm | — |
Duration | 10–60 seconds |
Patent
Atlas literature
Patent
US 9,534,319Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 3 0 W O 2 0 10/0 9 6 6 6 5 A l IIIlll|IIIIII iII I il|i||||||||||||||||||||||1 ||||1 ||||I|i|||||||||||| II||I|| II|||||||| GM, KE, LS, MW, MZ, NA, SD, …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The A method of claim 24, further preparing a solution, said method comprising: providing the a carbon material selected from the group consisting of graphite, graphite oxide, and combinations thereof; and dissolving the carbon material in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the carbon material in the solvent, wherein the mixing results in exfoliation of the carbon material to form an exfoliated carbon material in the solution, and wherein the exfoliated carbon material is selected from the group consisting of graphene, oxidized graphene, graphene nanoribbons, oxidized graphene nanoribbons, reduced graphene nanoribbons, and combinations thereof.
The method of claim [1] 24, wherein the mixing comprises stirring the graphite oxide carbon material in the solvent.
The method of claim [1] 24, wherein the solvent comprises chlorosulfonic acid.
The method of claim [1] 24, wherein the solvent comprises at least chlorosulfonic acid and sulfuric acid.-3-ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352
The method of claim [1] 24, further comprising: centrifuging the solution; and separating the solution from any undissolved carbon material graphite oxide.
The method of claim [1] 24, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim [1] 24, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
The method of claim 7, wherein forming comprises a process selected from the group consisting of extruding the solution through a spinneret, extruding the solution through a needle, extruding the solution through a film die, spreading the solution into a film, casting the solution into a mold, and combinations thereof.
The method of claim 7, wherein removing comprises a process selected from the group consisting of coagulation, evaporation, heating under vacuum and combinations thereof.
The method of claim [1] 24, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is an isotropic solution.
The method of claim 11, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; -4- ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352 wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim 11, further comprising: depositing the solution on a surface; and removing the solvent to form a film comprising the exfoliated carbon material oxidized g raphene on the surface.
The method of claim 11, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is a liquid crystalline solution.
The method of claim 15, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
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A method comprising: dissolving graphite oxide in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the graphite oxide in the solvent, and wherein the mixing results in exfoliation of the graphite oxide to form an oxidized graphene in the solution.
The method of claim 24, further comprising: removing the solvent; and isolating the oxidized graphene.
. The method of claim 24, wherein the oxidized about ten layers. -7-mixing comprises high shear mixing the carbon DOCKET NO. PATENT 1 1321-P₁₈₃WOUS mixing comprises sonicating the carbon material graphene comprises from about one layer to
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. The method of claim [1] 24, wherein the material graphite oxide in the solvent. -6- ATTORNEY Serial No. 13/202,352
. The method of claim [1] 24, wherein the graphite oxide in the solvent.
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Materials described outside the worked examples.
graphite
graphite oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 300–900 nm | — |
Duration | 10–60 seconds |
Patent
Atlas literature
Patent
US 9,534,319Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 3 0 W O 2 0 10/0 9 6 6 6 5 A l IIIlll|IIIIII iII I il|i||||||||||||||||||||||1 ||||1 ||||I|i|||||||||||| II||I|| II|||||||| GM, KE, LS, MW, MZ, NA, SD, …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The A method of claim 24, further preparing a solution, said method comprising: providing the a carbon material selected from the group consisting of graphite, graphite oxide, and combinations thereof; and dissolving the carbon material in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the carbon material in the solvent, wherein the mixing results in exfoliation of the carbon material to form an exfoliated carbon material in the solution, and wherein the exfoliated carbon material is selected from the group consisting of graphene, oxidized graphene, graphene nanoribbons, oxidized graphene nanoribbons, reduced graphene nanoribbons, and combinations thereof.
The method of claim [1] 24, wherein the mixing comprises stirring the graphite oxide carbon material in the solvent.
The method of claim [1] 24, wherein the solvent comprises chlorosulfonic acid.
The method of claim [1] 24, wherein the solvent comprises at least chlorosulfonic acid and sulfuric acid.-3-ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352
The method of claim [1] 24, further comprising: centrifuging the solution; and separating the solution from any undissolved carbon material graphite oxide.
The method of claim [1] 24, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim [1] 24, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
The method of claim 7, wherein forming comprises a process selected from the group consisting of extruding the solution through a spinneret, extruding the solution through a needle, extruding the solution through a film die, spreading the solution into a film, casting the solution into a mold, and combinations thereof.
The method of claim 7, wherein removing comprises a process selected from the group consisting of coagulation, evaporation, heating under vacuum and combinations thereof.
The method of claim [1] 24, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is an isotropic solution.
The method of claim 11, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; -4- ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352 wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim 11, further comprising: depositing the solution on a surface; and removing the solvent to form a film comprising the exfoliated carbon material oxidized g raphene on the surface.
The method of claim 11, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is a liquid crystalline solution.
The method of claim 15, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
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A method comprising: dissolving graphite oxide in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the graphite oxide in the solvent, and wherein the mixing results in exfoliation of the graphite oxide to form an oxidized graphene in the solution.
The method of claim 24, further comprising: removing the solvent; and isolating the oxidized graphene.
. The method of claim 24, wherein the oxidized about ten layers. -7-mixing comprises high shear mixing the carbon DOCKET NO. PATENT 1 1321-P₁₈₃WOUS mixing comprises sonicating the carbon material graphene comprises from about one layer to
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. The method of claim [1] 24, wherein the material graphite oxide in the solvent. -6- ATTORNEY Serial No. 13/202,352
. The method of claim [1] 24, wherein the graphite oxide in the solvent.
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Materials described outside the worked examples.
graphite
graphite oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 300–900 nm | — |
Duration | 10–60 seconds |
Patent
Atlas literature
Patent
US 9,534,319Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 3 0 W O 2 0 10/0 9 6 6 6 5 A l IIIlll|IIIIII iII I il|i||||||||||||||||||||||1 ||||1 ||||I|i|||||||||||| II||I|| II|||||||| GM, KE, LS, MW, MZ, NA, SD, …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
The A method of claim 24, further preparing a solution, said method comprising: providing the a carbon material selected from the group consisting of graphite, graphite oxide, and combinations thereof; and dissolving the carbon material in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the carbon material in the solvent, wherein the mixing results in exfoliation of the carbon material to form an exfoliated carbon material in the solution, and wherein the exfoliated carbon material is selected from the group consisting of graphene, oxidized graphene, graphene nanoribbons, oxidized graphene nanoribbons, reduced graphene nanoribbons, and combinations thereof.
The method of claim [1] 24, wherein the mixing comprises stirring the graphite oxide carbon material in the solvent.
The method of claim [1] 24, wherein the solvent comprises chlorosulfonic acid.
The method of claim [1] 24, wherein the solvent comprises at least chlorosulfonic acid and sulfuric acid.-3-ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352
The method of claim [1] 24, further comprising: centrifuging the solution; and separating the solution from any undissolved carbon material graphite oxide.
The method of claim [1] 24, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim [1] 24, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
The method of claim 7, wherein forming comprises a process selected from the group consisting of extruding the solution through a spinneret, extruding the solution through a needle, extruding the solution through a film die, spreading the solution into a film, casting the solution into a mold, and combinations thereof.
The method of claim 7, wherein removing comprises a process selected from the group consisting of coagulation, evaporation, heating under vacuum and combinations thereof.
The method of claim [1] 24, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is an isotropic solution.
The method of claim 11, further comprising: mixing the solution with a polymer; and removing the solvent from the polymer to form a composite material; -4- ATTORNEY DOCKET NO. PATENT 1 1321-P₁₈₃WOUS Serial No. 13/202,352 wherein the composite material comprises the polymer and the exfoliated carbon material oxidized graphene.
The method of claim 11, further comprising: depositing the solution on a surface; and removing the solvent to form a film comprising the exfoliated carbon material oxidized g raphene on the surface.
The method of claim 11, further comprising: functionalizing the carbon material graphite oxide while in the solution.
The method of claim [1] 24, wherein the formed solution is a liquid crystalline solution.
The method of claim 15, further comprising: forming an article from the solution; wherein the article comprises a neat form of the exfoliated carbon material oxidized g raphene; and removing the solvent from the article.
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A method comprising: dissolving graphite oxide in a solvent to form a solution, wherein the solvent comprises at least one superacid, wherein the dissolving comprises mixing the graphite oxide in the solvent, and wherein the mixing results in exfoliation of the graphite oxide to form an oxidized graphene in the solution.
The method of claim 24, further comprising: removing the solvent; and isolating the oxidized graphene.
. The method of claim 24, wherein the oxidized about ten layers. -7-mixing comprises high shear mixing the carbon DOCKET NO. PATENT 1 1321-P₁₈₃WOUS mixing comprises sonicating the carbon material graphene comprises from about one layer to
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. The method of claim [1] 24, wherein the material graphite oxide in the solvent. -6- ATTORNEY Serial No. 13/202,352
. The method of claim [1] 24, wherein the graphite oxide in the solvent.
. canceled
Materials described outside the worked examples.
graphite
graphite oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 300–900 nm | — |
Duration | 10–60 seconds |
graphene
oxidized graphene
graphene nanoribbons
oxidized graphene nanoribbons
reduced graphene nanoribbons
chlorosulfonic acid
ClSO₃H
sulfuric acid
H₂SO₄
superacid
| — |
graphene
oxidized graphene
graphene nanoribbons
oxidized graphene nanoribbons
reduced graphene nanoribbons
chlorosulfonic acid
ClSO₃H
sulfuric acid
H₂SO₄
superacid
| — |
graphene
oxidized graphene
graphene nanoribbons
oxidized graphene nanoribbons
reduced graphene nanoribbons
chlorosulfonic acid
ClSO₃H
sulfuric acid
H₂SO₄
superacid
| — |
graphene
oxidized graphene
graphene nanoribbons
oxidized graphene nanoribbons
reduced graphene nanoribbons
chlorosulfonic acid
ClSO₃H
sulfuric acid
H₂SO₄
superacid
| — |