Patent
US 9,878,302GRAPHENE AND CARBON NANOTUBE COMPOSITIONS
Liangming Wei
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,878,302Claims 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 two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group; carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group; wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets. Currently amended
The composition of Claim 1, wherein a net electrical charge of the two or more graphene sheets and the carbon nanotubes is negative. Previously presented
The composition of Claim 1, wherein at least one of the first and second negatively charged groups are a free acid of a group that comprises a carboxyl group, a boronic acid group, a phosphonic acid group, or a sulfamic acid group. Previously presented
The composition of Claim 1, further comprising an anionic surfactant and a cationic surfactant, wherein the anionic surfactant and the cationic surfactant are disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, or any combination thereof. Previously presented
The composition of Claim 1, wherein the composition has a capacitance of at least about 75 F/g. Previously presented
The composition of Claim 1, wherein the composition is porous with an average pore diameter of less than or equal to about 6 nm. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are overlapping, intertwined, or forming ropes and disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the size of the two or more graphene sheets have an average surface area in the range of 100 nm 2 to 1000 nm 2. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is selected from the group of a primary ammonium ion, a secondary ammonium ion, a tertiary ammonium ion, or a quate rn ary ammonium ion. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is represented by formula (1): SVG 14428186.11-29-2017.JALHO₆D₈RXEAPX3.CLM.3.2.1154.415.1404.593.svg 0.593 0.833 Chemistry Black and white where R i, R 2, R 3, and R 4 are each independently hydrogen, C i-C 12 hydrocarbon, or an C s-Cio aryl carbons, and wherein R l and R 2 are taken together to form a nitrogen-containing heterocycle. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of a protonated pyrrolidine[[,]] or a polyamine having two or more cationic amino groups covalently bonded to a hydrocarbon. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of protonated forms of piperazine, alkylene diamines, or N H 3 -(CH 2)n-NH 3, wherein n is 1 to
The composition of Claim 1, wherein the composition is in a suspension, a liquid, a solid, or in a granular form. Currently amended
The composition of Claim 1, wherein the total amount of the two or more graphene sheets in the composition is in the range of 1 % to 90 % by weight. Previously presented
The composition of Claim 1, wherein the total amount of the carbon nanotubes in the composition is in the range of 1% to 90 % by weight. Previously presented
The composition of Claim 1 further comprises of additional materials wherein the additional materials include polymers, plasticizers, organic solvents, binders, sulfur, and metal oxide nanoparticles. Currently amended
The composition of Claim 1, wherein the composition has a BET surface area in the range of 400 m 2/g to 2500 m 2/g. Previously presented
Canceled
- 6. Canceled
Canceled
Canceled
-14. Canceled
Canceled
Canceled
-54. Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
capacitance of composition | ≥ 75 | graphene sheetscarbon nanotubes |
BET surface area of composition |
Patent
Atlas literature
Patent
US 9,878,302Claims 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 two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group; carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group; wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets. Currently amended
The composition of Claim 1, wherein a net electrical charge of the two or more graphene sheets and the carbon nanotubes is negative. Previously presented
The composition of Claim 1, wherein at least one of the first and second negatively charged groups are a free acid of a group that comprises a carboxyl group, a boronic acid group, a phosphonic acid group, or a sulfamic acid group. Previously presented
The composition of Claim 1, further comprising an anionic surfactant and a cationic surfactant, wherein the anionic surfactant and the cationic surfactant are disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, or any combination thereof. Previously presented
The composition of Claim 1, wherein the composition has a capacitance of at least about 75 F/g. Previously presented
The composition of Claim 1, wherein the composition is porous with an average pore diameter of less than or equal to about 6 nm. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are overlapping, intertwined, or forming ropes and disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the size of the two or more graphene sheets have an average surface area in the range of 100 nm 2 to 1000 nm 2. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is selected from the group of a primary ammonium ion, a secondary ammonium ion, a tertiary ammonium ion, or a quate rn ary ammonium ion. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is represented by formula (1): SVG 14428186.11-29-2017.JALHO₆D₈RXEAPX3.CLM.3.2.1154.415.1404.593.svg 0.593 0.833 Chemistry Black and white where R i, R 2, R 3, and R 4 are each independently hydrogen, C i-C 12 hydrocarbon, or an C s-Cio aryl carbons, and wherein R l and R 2 are taken together to form a nitrogen-containing heterocycle. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of a protonated pyrrolidine[[,]] or a polyamine having two or more cationic amino groups covalently bonded to a hydrocarbon. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of protonated forms of piperazine, alkylene diamines, or N H 3 -(CH 2)n-NH 3, wherein n is 1 to
The composition of Claim 1, wherein the composition is in a suspension, a liquid, a solid, or in a granular form. Currently amended
The composition of Claim 1, wherein the total amount of the two or more graphene sheets in the composition is in the range of 1 % to 90 % by weight. Previously presented
The composition of Claim 1, wherein the total amount of the carbon nanotubes in the composition is in the range of 1% to 90 % by weight. Previously presented
The composition of Claim 1 further comprises of additional materials wherein the additional materials include polymers, plasticizers, organic solvents, binders, sulfur, and metal oxide nanoparticles. Currently amended
The composition of Claim 1, wherein the composition has a BET surface area in the range of 400 m 2/g to 2500 m 2/g. Previously presented
Canceled
- 6. Canceled
Canceled
Canceled
-14. Canceled
Canceled
Canceled
-54. Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
capacitance of composition | ≥ 75 | graphene sheetscarbon nanotubes |
BET surface area of composition |
Patent
Atlas literature
Patent
US 9,878,302Claims 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 two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group; carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group; wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets. Currently amended
The composition of Claim 1, wherein a net electrical charge of the two or more graphene sheets and the carbon nanotubes is negative. Previously presented
The composition of Claim 1, wherein at least one of the first and second negatively charged groups are a free acid of a group that comprises a carboxyl group, a boronic acid group, a phosphonic acid group, or a sulfamic acid group. Previously presented
The composition of Claim 1, further comprising an anionic surfactant and a cationic surfactant, wherein the anionic surfactant and the cationic surfactant are disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, or any combination thereof. Previously presented
The composition of Claim 1, wherein the composition has a capacitance of at least about 75 F/g. Previously presented
The composition of Claim 1, wherein the composition is porous with an average pore diameter of less than or equal to about 6 nm. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are overlapping, intertwined, or forming ropes and disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the size of the two or more graphene sheets have an average surface area in the range of 100 nm 2 to 1000 nm 2. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is selected from the group of a primary ammonium ion, a secondary ammonium ion, a tertiary ammonium ion, or a quate rn ary ammonium ion. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is represented by formula (1): SVG 14428186.11-29-2017.JALHO₆D₈RXEAPX3.CLM.3.2.1154.415.1404.593.svg 0.593 0.833 Chemistry Black and white where R i, R 2, R 3, and R 4 are each independently hydrogen, C i-C 12 hydrocarbon, or an C s-Cio aryl carbons, and wherein R l and R 2 are taken together to form a nitrogen-containing heterocycle. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of a protonated pyrrolidine[[,]] or a polyamine having two or more cationic amino groups covalently bonded to a hydrocarbon. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of protonated forms of piperazine, alkylene diamines, or N H 3 -(CH 2)n-NH 3, wherein n is 1 to
The composition of Claim 1, wherein the composition is in a suspension, a liquid, a solid, or in a granular form. Currently amended
The composition of Claim 1, wherein the total amount of the two or more graphene sheets in the composition is in the range of 1 % to 90 % by weight. Previously presented
The composition of Claim 1, wherein the total amount of the carbon nanotubes in the composition is in the range of 1% to 90 % by weight. Previously presented
The composition of Claim 1 further comprises of additional materials wherein the additional materials include polymers, plasticizers, organic solvents, binders, sulfur, and metal oxide nanoparticles. Currently amended
The composition of Claim 1, wherein the composition has a BET surface area in the range of 400 m 2/g to 2500 m 2/g. Previously presented
Canceled
- 6. Canceled
Canceled
Canceled
-14. Canceled
Canceled
Canceled
-54. Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
capacitance of composition | ≥ 75 | graphene sheetscarbon nanotubes |
BET surface area of composition |
Patent
Atlas literature
Patent
US 9,878,302Claims 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 two or more graphene sheets, wherein the two or more graphene sheets are functionalized with a first negatively charged group; carbon nanotubes disposed between the two or more graphene sheets, wherein the carbon nanotubes are functionalized with a second negatively charged group; wherein a weight ratio of the two or more graphene sheets to the carbon nanotubes is in the range of 1/5 to 5/1; and wherein the composition further comprises an ammonium ion or a substituted ammonium ion disposed between the two or more graphene sheets. Currently amended
The composition of Claim 1, wherein a net electrical charge of the two or more graphene sheets and the carbon nanotubes is negative. Previously presented
The composition of Claim 1, wherein at least one of the first and second negatively charged groups are a free acid of a group that comprises a carboxyl group, a boronic acid group, a phosphonic acid group, or a sulfamic acid group. Previously presented
The composition of Claim 1, further comprising an anionic surfactant and a cationic surfactant, wherein the anionic surfactant and the cationic surfactant are disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes, or any combination thereof. Previously presented
The composition of Claim 1, wherein the composition has a capacitance of at least about 75 F/g. Previously presented
The composition of Claim 1, wherein the composition is porous with an average pore diameter of less than or equal to about 6 nm. Previously presented
The composition of Claim 1, wherein the carbon nanotubes are overlapping, intertwined, or forming ropes and disposed between the two or more graphene sheets. Previously presented
The composition of Claim 1, wherein the size of the two or more graphene sheets have an average surface area in the range of 100 nm 2 to 1000 nm 2. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is selected from the group of a primary ammonium ion, a secondary ammonium ion, a tertiary ammonium ion, or a quate rn ary ammonium ion. Previously presented
The composition of Claim 1, wherein the substituted ammonium ion is represented by formula (1): SVG 14428186.11-29-2017.JALHO₆D₈RXEAPX3.CLM.3.2.1154.415.1404.593.svg 0.593 0.833 Chemistry Black and white where R i, R 2, R 3, and R 4 are each independently hydrogen, C i-C 12 hydrocarbon, or an C s-Cio aryl carbons, and wherein R l and R 2 are taken together to form a nitrogen-containing heterocycle. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of a protonated pyrrolidine[[,]] or a polyamine having two or more cationic amino groups covalently bonded to a hydrocarbon. Currently amended
The composition of Claim 1, wherein the substituted ammonium ion further comprises of protonated forms of piperazine, alkylene diamines, or N H 3 -(CH 2)n-NH 3, wherein n is 1 to
The composition of Claim 1, wherein the composition is in a suspension, a liquid, a solid, or in a granular form. Currently amended
The composition of Claim 1, wherein the total amount of the two or more graphene sheets in the composition is in the range of 1 % to 90 % by weight. Previously presented
The composition of Claim 1, wherein the total amount of the carbon nanotubes in the composition is in the range of 1% to 90 % by weight. Previously presented
The composition of Claim 1 further comprises of additional materials wherein the additional materials include polymers, plasticizers, organic solvents, binders, sulfur, and metal oxide nanoparticles. Currently amended
The composition of Claim 1, wherein the composition has a BET surface area in the range of 400 m 2/g to 2500 m 2/g. Previously presented
Canceled
- 6. Canceled
Canceled
Canceled
-14. Canceled
Canceled
Canceled
-54. Canceled
Canceled
Canceled
Materials described outside the worked examples.
graphene sheets
carbon nanotubes
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
capacitance of composition | ≥ 75 | graphene sheetscarbon nanotubes |
BET surface area of composition |
anionic surfactant
cationic surfactant
| 400–2500 |
graphene sheetscarbon nanotubes |
average pore diameter of composition | ≤ 6 | graphene sheetscarbon nanotubes |
Thickness | 2–1000 nm | — |
anionic surfactant
cationic surfactant
| 400–2500 |
graphene sheetscarbon nanotubes |
average pore diameter of composition | ≤ 6 | graphene sheetscarbon nanotubes |
Thickness | 2–1000 nm | — |
anionic surfactant
cationic surfactant
| 400–2500 |
graphene sheetscarbon nanotubes |
average pore diameter of composition | ≤ 6 | graphene sheetscarbon nanotubes |
Thickness | 2–1000 nm | — |
anionic surfactant
cationic surfactant
| 400–2500 |
graphene sheetscarbon nanotubes |
average pore diameter of composition | ≤ 6 | graphene sheetscarbon nanotubes |
Thickness | 2–1000 nm | — |