Patent
US 9,506,156Title: P RODUCTION OF GRAPHENE
Robert Angus William DRYFE, Ian Anthony KINLOCH, Amr M. ABDELKADER
12 September 2013·US
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Atlas literature
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US 9,506,156Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for the production of graphene and graphite nanoplatelet structures having a thickness of less than 100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode; and (c) an electrolyte which comprises ions in a solvent, said ions comprising cations and anions, wherein the cations comprise organic ions and metal ions; and wherein the method comprises the step of passing a current through the cell.
The method according to claim 1, wherein the negative electrode comprises a layered graphite compound in which the cations can be intercalated.
The method according to claim 1, wherein the negative electrode comprises a graphite compound that is selected from highly ordered pyrolytic graphite, natural graphite and synthetic graphite.
The method according to claim 1, wherein the organic cations comprise alkylammonium cations.
The method according to claim 1, wherein the metal cations are iron cations. withdrawn
The method according to claim 1, wherein the metal cations are tin cations. withdrawn
The method according to claim 1, wherein the metal cations are lithium cations. 3 Application No. 14/383,877 Reply to Office Action dated
The method according to claim 1, wherein the electrolyte further comprises counter-ions selected from chloride, tetrafluoroborate, perchlorate and hexafluorophosphate.
(P reviously P resented) The method according to claim 1, which is carried out a temperature from SVG 14383877.03-28-2016.IMCMYR₉PPXXIFW3.CLM.3.7.773.857.1065.892.svg 0.117 0.973 Chemistry Black and white.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are separated from the electrolyte by at least one technique selected from: (a) filtering; (b) using centrifugal forces to precipitate the graphene or graphite nanoplatelet structures; and (c) collecting the graphene or graphite nanoplatelet structures at the interface of two immiscible solvents.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are electrochemically exfoliated from at least one electrode and wherein the method graphene or graphite nanoplatelet structures.
(P reviously P resented) The method according passing current through the cell, graphite at the electrochemically by oxidation in nitric acid or the method comprises electrochemically exfoliating structures having a thickness of less than 100 nm further comprises ultrasonicating the to claim 1, wherein, prior to the step of negative electrode is functionalised fluorination using hydrofluoric acid, and wherein the graphene or graphite nanoplatelet from at least one electrode. 4
Layer stacks claimed or described, ordered top of device to substrate.
electrochemical cell for graphene production
Materials described outside the worked examples.
graphene/graphite nanoplatelet structures
graphite (negative electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 1 nm | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,506,156Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for the production of graphene and graphite nanoplatelet structures having a thickness of less than 100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode; and (c) an electrolyte which comprises ions in a solvent, said ions comprising cations and anions, wherein the cations comprise organic ions and metal ions; and wherein the method comprises the step of passing a current through the cell.
The method according to claim 1, wherein the negative electrode comprises a layered graphite compound in which the cations can be intercalated.
The method according to claim 1, wherein the negative electrode comprises a graphite compound that is selected from highly ordered pyrolytic graphite, natural graphite and synthetic graphite.
The method according to claim 1, wherein the organic cations comprise alkylammonium cations.
The method according to claim 1, wherein the metal cations are iron cations. withdrawn
The method according to claim 1, wherein the metal cations are tin cations. withdrawn
The method according to claim 1, wherein the metal cations are lithium cations. 3 Application No. 14/383,877 Reply to Office Action dated
The method according to claim 1, wherein the electrolyte further comprises counter-ions selected from chloride, tetrafluoroborate, perchlorate and hexafluorophosphate.
(P reviously P resented) The method according to claim 1, which is carried out a temperature from SVG 14383877.03-28-2016.IMCMYR₉PPXXIFW3.CLM.3.7.773.857.1065.892.svg 0.117 0.973 Chemistry Black and white.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are separated from the electrolyte by at least one technique selected from: (a) filtering; (b) using centrifugal forces to precipitate the graphene or graphite nanoplatelet structures; and (c) collecting the graphene or graphite nanoplatelet structures at the interface of two immiscible solvents.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are electrochemically exfoliated from at least one electrode and wherein the method graphene or graphite nanoplatelet structures.
(P reviously P resented) The method according passing current through the cell, graphite at the electrochemically by oxidation in nitric acid or the method comprises electrochemically exfoliating structures having a thickness of less than 100 nm further comprises ultrasonicating the to claim 1, wherein, prior to the step of negative electrode is functionalised fluorination using hydrofluoric acid, and wherein the graphene or graphite nanoplatelet from at least one electrode. 4
Layer stacks claimed or described, ordered top of device to substrate.
electrochemical cell for graphene production
Materials described outside the worked examples.
graphene/graphite nanoplatelet structures
graphite (negative electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 1 nm | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,506,156Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for the production of graphene and graphite nanoplatelet structures having a thickness of less than 100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode; and (c) an electrolyte which comprises ions in a solvent, said ions comprising cations and anions, wherein the cations comprise organic ions and metal ions; and wherein the method comprises the step of passing a current through the cell.
The method according to claim 1, wherein the negative electrode comprises a layered graphite compound in which the cations can be intercalated.
The method according to claim 1, wherein the negative electrode comprises a graphite compound that is selected from highly ordered pyrolytic graphite, natural graphite and synthetic graphite.
The method according to claim 1, wherein the organic cations comprise alkylammonium cations.
The method according to claim 1, wherein the metal cations are iron cations. withdrawn
The method according to claim 1, wherein the metal cations are tin cations. withdrawn
The method according to claim 1, wherein the metal cations are lithium cations. 3 Application No. 14/383,877 Reply to Office Action dated
The method according to claim 1, wherein the electrolyte further comprises counter-ions selected from chloride, tetrafluoroborate, perchlorate and hexafluorophosphate.
(P reviously P resented) The method according to claim 1, which is carried out a temperature from SVG 14383877.03-28-2016.IMCMYR₉PPXXIFW3.CLM.3.7.773.857.1065.892.svg 0.117 0.973 Chemistry Black and white.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are separated from the electrolyte by at least one technique selected from: (a) filtering; (b) using centrifugal forces to precipitate the graphene or graphite nanoplatelet structures; and (c) collecting the graphene or graphite nanoplatelet structures at the interface of two immiscible solvents.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are electrochemically exfoliated from at least one electrode and wherein the method graphene or graphite nanoplatelet structures.
(P reviously P resented) The method according passing current through the cell, graphite at the electrochemically by oxidation in nitric acid or the method comprises electrochemically exfoliating structures having a thickness of less than 100 nm further comprises ultrasonicating the to claim 1, wherein, prior to the step of negative electrode is functionalised fluorination using hydrofluoric acid, and wherein the graphene or graphite nanoplatelet from at least one electrode. 4
Layer stacks claimed or described, ordered top of device to substrate.
electrochemical cell for graphene production
Materials described outside the worked examples.
graphene/graphite nanoplatelet structures
graphite (negative electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 1 nm | — |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,506,156Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method for the production of graphene and graphite nanoplatelet structures having a thickness of less than 100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode; and (c) an electrolyte which comprises ions in a solvent, said ions comprising cations and anions, wherein the cations comprise organic ions and metal ions; and wherein the method comprises the step of passing a current through the cell.
The method according to claim 1, wherein the negative electrode comprises a layered graphite compound in which the cations can be intercalated.
The method according to claim 1, wherein the negative electrode comprises a graphite compound that is selected from highly ordered pyrolytic graphite, natural graphite and synthetic graphite.
The method according to claim 1, wherein the organic cations comprise alkylammonium cations.
The method according to claim 1, wherein the metal cations are iron cations. withdrawn
The method according to claim 1, wherein the metal cations are tin cations. withdrawn
The method according to claim 1, wherein the metal cations are lithium cations. 3 Application No. 14/383,877 Reply to Office Action dated
The method according to claim 1, wherein the electrolyte further comprises counter-ions selected from chloride, tetrafluoroborate, perchlorate and hexafluorophosphate.
(P reviously P resented) The method according to claim 1, which is carried out a temperature from SVG 14383877.03-28-2016.IMCMYR₉PPXXIFW3.CLM.3.7.773.857.1065.892.svg 0.117 0.973 Chemistry Black and white.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are separated from the electrolyte by at least one technique selected from: (a) filtering; (b) using centrifugal forces to precipitate the graphene or graphite nanoplatelet structures; and (c) collecting the graphene or graphite nanoplatelet structures at the interface of two immiscible solvents.
(P reviously P resented) The method according to claim 1, wherein the graphene or graphite nanoplatelet structures having a thickness of less than 100 nm are electrochemically exfoliated from at least one electrode and wherein the method graphene or graphite nanoplatelet structures.
(P reviously P resented) The method according passing current through the cell, graphite at the electrochemically by oxidation in nitric acid or the method comprises electrochemically exfoliating structures having a thickness of less than 100 nm further comprises ultrasonicating the to claim 1, wherein, prior to the step of negative electrode is functionalised fluorination using hydrofluoric acid, and wherein the graphene or graphite nanoplatelet from at least one electrode. 4
Layer stacks claimed or described, ordered top of device to substrate.
electrochemical cell for graphene production
Materials described outside the worked examples.
graphene/graphite nanoplatelet structures
graphite (negative electrode)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 1 a sho w s the Raman spectra of the material produced in Example 1a;
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 1 nm | — |
Related documents with shared materials, methods, properties, or citations.
electrolyte with organic and metal cations in solvent
highly ordered pyrolytic graphite
natural graphite
synthetic graphite
alkylammonium cations
tetraalkylammonium cations
tetrabutylammonium
tetraethylammonium
tetramethylammonium
trialkylammonium cations
tributylammonium
triethylammonium
trimethylammonium
dialkylammonium cations
dibutylammonium
diethylammonium
dimethylammonium
iron cations
tin cations
lithium cations
chloride
Cl-
tetrafluoroborate
BF₄-
perchlorate
ClO₄-
hexafluorophosphate
PF₆-
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
electrolyte with organic and metal cations in solvent
highly ordered pyrolytic graphite
natural graphite
synthetic graphite
alkylammonium cations
tetraalkylammonium cations
tetrabutylammonium
tetraethylammonium
tetramethylammonium
trialkylammonium cations
tributylammonium
triethylammonium
trimethylammonium
dialkylammonium cations
dibutylammonium
diethylammonium
dimethylammonium
iron cations
tin cations
lithium cations
chloride
Cl-
tetrafluoroborate
BF₄-
perchlorate
ClO₄-
hexafluorophosphate
PF₆-
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
electrolyte with organic and metal cations in solvent
highly ordered pyrolytic graphite
natural graphite
synthetic graphite
alkylammonium cations
tetraalkylammonium cations
tetrabutylammonium
tetraethylammonium
tetramethylammonium
trialkylammonium cations
tributylammonium
triethylammonium
trimethylammonium
dialkylammonium cations
dibutylammonium
diethylammonium
dimethylammonium
iron cations
tin cations
lithium cations
chloride
Cl-
tetrafluoroborate
BF₄-
perchlorate
ClO₄-
hexafluorophosphate
PF₆-
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …
electrolyte with organic and metal cations in solvent
highly ordered pyrolytic graphite
natural graphite
synthetic graphite
alkylammonium cations
tetraalkylammonium cations
tetrabutylammonium
tetraethylammonium
tetramethylammonium
trialkylammonium cations
tributylammonium
triethylammonium
trimethylammonium
dialkylammonium cations
dibutylammonium
diethylammonium
dimethylammonium
iron cations
tin cations
lithium cations
chloride
Cl-
tetrafluoroborate
BF₄-
perchlorate
ClO₄-
hexafluorophosphate
PF₆-
Figure 3 b shows the Raman spectra of some of the material produced in Example 3b; Figure 3c shows the Raman spectra of other material produced in Example 3b;
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figure 4 shows the Raman spectra of material produced in Example 4; Figure 5a show s the Raman spectra of material produced in Example 5; Figures 5b, 5 c and 5d show TE M images of the material produced in Example 5; and Figures Se, 5 f and 5g show SEM images of the material produced in Example S. …
Figures 5 b, 5 c, and 5 d. As seen in the SEM images (Figures S e, 5 f and 5 g), the size of the graphene sheets produced ranged from 2p m to 10 pm. WO 2013/132261 PCT/GB₂₀₁₃/050573 15 References The following documents are all incorporated herein by reference. [Novoselov 2004] Electric field effect …