Patent
US 8,315,039Spacer-Modified Nano Graphene Electrodes for Supercapacitors
Aruna Zhamu, Zhenning Yu, Chen-guang Liu, Bor Z. Jang
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,315,039Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
FIG.3 An electrode structure comprising multiple surface-modified NGPs overlapped together, 25 but slightly separated due to the presence of spacer nodules, …
FIG.4 (A) and (B) show the specific surface area and specific capacitance of electrodes containing carbon nodule-modified NGPs plotted as a function of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A spacer-s urfaee- -modified nano graphene platelet or sheet, comprising: (a) a nano graphene platelet or sheet having a thickness smaller than 10 nm, said graphene platelet or sheet having two opposed surfaces; and (b) discrete, non-continuous, and non-metallic bumps or nodules bonded to a surface of said graphene platelet or sheet to serve as a spacer that prevents re-stacking of said graphene platelet or sheet sheet with another graphene platelet or sheet.
The spacer -s wfaee -modif i ed nano graphene platelet or sheet as defined in claim 1, comprising multiple bumps or nodules bonded to both surfaces of said platelet or sheet.
The spacer- swuf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide, and combinations thereof.
The s p acer-s u fae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of RuO2, IrO 2, Ni O, MnO2, VO X, TiO2, Cr₂O3, C o2O 3, PbO2, Ag₂ O, MoC X, Mo₂N, WC, WN X, and combinations thereof
The spacer-s uf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric material coated onto a surface of said graphene platelet.
The s p acer-s fae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric coating substance selected from the group consisting of phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene, and combination thereof.
The s p acer-s hrfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 1 nm.
The s p acer-s ufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 2 nm.
The s p acer-s uf faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet is single-layer graphene.
The s p acer-s urf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet has no more than 5 graphene layers.
The s p acer-s uw faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 500 m2/g.
The spacer-s uf faee-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 900 m2/g.
The s p acer-s tu faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 1,384 m2/g.
The s p acer- sufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 2,600 m2/g.
An electrochemical cell electrode comprising a s p acer -suifaee- modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein at least one of the two electrodes comprises a s p acer-s uffa ee-modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein each of the two electrodes comprises a spacer-s uf faee-modified nano graphene platelet 3 or sheet as defined in claim 1.
An electrochemical cell electrode comprising a plurality of sp acer- su fa ee-modified nano graphene platelets or graphene sheets as defined in claim 1, wherein multiple platelets or sheets form a stack having pores between platelets.
The s p acer -swfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-su rfae e-modif i ed nano graphene platelet or graphene sheet is activated to form an activated platelet or sheet.
The spacer-s tufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said spacer-s ufae e-modif i ed nano graphene platelet or sheet is functionalized.
The spacer-s ufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-s uf e e-modified nano graphene platelet or sheet is functionalized with one or more functional groups selected from the group consisting of --S O 3, -- R'COX, --R'(COOH)2, --CN, -- R'CH₂X, --OH, --R'CHO, --R'CN, wherein R' is a hydrocarbon radical, and wherein X is --NH2, -- OH, or a halogen.
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Layer stacks claimed or described, ordered top of device to substrate.
spacer-surface-modified nano graphene platelet
electrochemical cell electrode
supercapacitor
Materials described outside the worked examples.
nano graphene platelet (NGP)
non-metallic bumps or nodules (spacer)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific surface area of single graphene sheet (theoretical, background) | 2675 m2/g | single-layer graphene |
specific surface area of modified NGP (claimed lower bound, claim 11) | ≥ 500 m2/g |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,315,039Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
FIG.3 An electrode structure comprising multiple surface-modified NGPs overlapped together, 25 but slightly separated due to the presence of spacer nodules, …
FIG.4 (A) and (B) show the specific surface area and specific capacitance of electrodes containing carbon nodule-modified NGPs plotted as a function of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A spacer-s urfaee- -modified nano graphene platelet or sheet, comprising: (a) a nano graphene platelet or sheet having a thickness smaller than 10 nm, said graphene platelet or sheet having two opposed surfaces; and (b) discrete, non-continuous, and non-metallic bumps or nodules bonded to a surface of said graphene platelet or sheet to serve as a spacer that prevents re-stacking of said graphene platelet or sheet sheet with another graphene platelet or sheet.
The spacer -s wfaee -modif i ed nano graphene platelet or sheet as defined in claim 1, comprising multiple bumps or nodules bonded to both surfaces of said platelet or sheet.
The spacer- swuf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide, and combinations thereof.
The s p acer-s u fae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of RuO2, IrO 2, Ni O, MnO2, VO X, TiO2, Cr₂O3, C o2O 3, PbO2, Ag₂ O, MoC X, Mo₂N, WC, WN X, and combinations thereof
The spacer-s uf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric material coated onto a surface of said graphene platelet.
The s p acer-s fae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric coating substance selected from the group consisting of phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene, and combination thereof.
The s p acer-s hrfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 1 nm.
The s p acer-s ufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 2 nm.
The s p acer-s uf faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet is single-layer graphene.
The s p acer-s urf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet has no more than 5 graphene layers.
The s p acer-s uw faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 500 m2/g.
The spacer-s uf faee-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 900 m2/g.
The s p acer-s tu faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 1,384 m2/g.
The s p acer- sufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 2,600 m2/g.
An electrochemical cell electrode comprising a s p acer -suifaee- modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein at least one of the two electrodes comprises a s p acer-s uffa ee-modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein each of the two electrodes comprises a spacer-s uf faee-modified nano graphene platelet 3 or sheet as defined in claim 1.
An electrochemical cell electrode comprising a plurality of sp acer- su fa ee-modified nano graphene platelets or graphene sheets as defined in claim 1, wherein multiple platelets or sheets form a stack having pores between platelets.
The s p acer -swfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-su rfae e-modif i ed nano graphene platelet or graphene sheet is activated to form an activated platelet or sheet.
The spacer-s tufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said spacer-s ufae e-modif i ed nano graphene platelet or sheet is functionalized.
The spacer-s ufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-s uf e e-modified nano graphene platelet or sheet is functionalized with one or more functional groups selected from the group consisting of --S O 3, -- R'COX, --R'(COOH)2, --CN, -- R'CH₂X, --OH, --R'CHO, --R'CN, wherein R' is a hydrocarbon radical, and wherein X is --NH2, -- OH, or a halogen.
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Layer stacks claimed or described, ordered top of device to substrate.
spacer-surface-modified nano graphene platelet
electrochemical cell electrode
supercapacitor
Materials described outside the worked examples.
nano graphene platelet (NGP)
non-metallic bumps or nodules (spacer)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific surface area of single graphene sheet (theoretical, background) | 2675 m2/g | single-layer graphene |
specific surface area of modified NGP (claimed lower bound, claim 11) | ≥ 500 m2/g |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,315,039Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
FIG.3 An electrode structure comprising multiple surface-modified NGPs overlapped together, 25 but slightly separated due to the presence of spacer nodules, …
FIG.4 (A) and (B) show the specific surface area and specific capacitance of electrodes containing carbon nodule-modified NGPs plotted as a function of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A spacer-s urfaee- -modified nano graphene platelet or sheet, comprising: (a) a nano graphene platelet or sheet having a thickness smaller than 10 nm, said graphene platelet or sheet having two opposed surfaces; and (b) discrete, non-continuous, and non-metallic bumps or nodules bonded to a surface of said graphene platelet or sheet to serve as a spacer that prevents re-stacking of said graphene platelet or sheet sheet with another graphene platelet or sheet.
The spacer -s wfaee -modif i ed nano graphene platelet or sheet as defined in claim 1, comprising multiple bumps or nodules bonded to both surfaces of said platelet or sheet.
The spacer- swuf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide, and combinations thereof.
The s p acer-s u fae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of RuO2, IrO 2, Ni O, MnO2, VO X, TiO2, Cr₂O3, C o2O 3, PbO2, Ag₂ O, MoC X, Mo₂N, WC, WN X, and combinations thereof
The spacer-s uf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric material coated onto a surface of said graphene platelet.
The s p acer-s fae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric coating substance selected from the group consisting of phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene, and combination thereof.
The s p acer-s hrfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 1 nm.
The s p acer-s ufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 2 nm.
The s p acer-s uf faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet is single-layer graphene.
The s p acer-s urf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet has no more than 5 graphene layers.
The s p acer-s uw faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 500 m2/g.
The spacer-s uf faee-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 900 m2/g.
The s p acer-s tu faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 1,384 m2/g.
The s p acer- sufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 2,600 m2/g.
An electrochemical cell electrode comprising a s p acer -suifaee- modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein at least one of the two electrodes comprises a s p acer-s uffa ee-modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein each of the two electrodes comprises a spacer-s uf faee-modified nano graphene platelet 3 or sheet as defined in claim 1.
An electrochemical cell electrode comprising a plurality of sp acer- su fa ee-modified nano graphene platelets or graphene sheets as defined in claim 1, wherein multiple platelets or sheets form a stack having pores between platelets.
The s p acer -swfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-su rfae e-modif i ed nano graphene platelet or graphene sheet is activated to form an activated platelet or sheet.
The spacer-s tufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said spacer-s ufae e-modif i ed nano graphene platelet or sheet is functionalized.
The spacer-s ufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-s uf e e-modified nano graphene platelet or sheet is functionalized with one or more functional groups selected from the group consisting of --S O 3, -- R'COX, --R'(COOH)2, --CN, -- R'CH₂X, --OH, --R'CHO, --R'CN, wherein R' is a hydrocarbon radical, and wherein X is --NH2, -- OH, or a halogen.
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Layer stacks claimed or described, ordered top of device to substrate.
spacer-surface-modified nano graphene platelet
electrochemical cell electrode
supercapacitor
Materials described outside the worked examples.
nano graphene platelet (NGP)
non-metallic bumps or nodules (spacer)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific surface area of single graphene sheet (theoretical, background) | 2675 m2/g | single-layer graphene |
specific surface area of modified NGP (claimed lower bound, claim 11) | ≥ 500 m2/g |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,315,039Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
FIG.3 An electrode structure comprising multiple surface-modified NGPs overlapped together, 25 but slightly separated due to the presence of spacer nodules, …
FIG.4 (A) and (B) show the specific surface area and specific capacitance of electrodes containing carbon nodule-modified NGPs plotted as a function of the …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A spacer-s urfaee- -modified nano graphene platelet or sheet, comprising: (a) a nano graphene platelet or sheet having a thickness smaller than 10 nm, said graphene platelet or sheet having two opposed surfaces; and (b) discrete, non-continuous, and non-metallic bumps or nodules bonded to a surface of said graphene platelet or sheet to serve as a spacer that prevents re-stacking of said graphene platelet or sheet sheet with another graphene platelet or sheet.
The spacer -s wfaee -modif i ed nano graphene platelet or sheet as defined in claim 1, comprising multiple bumps or nodules bonded to both surfaces of said platelet or sheet.
The spacer- swuf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide, and combinations thereof.
The s p acer-s u fae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules contain a material selected from the group consisting of RuO2, IrO 2, Ni O, MnO2, VO X, TiO2, Cr₂O3, C o2O 3, PbO2, Ag₂ O, MoC X, Mo₂N, WC, WN X, and combinations thereof
The spacer-s uf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric material coated onto a surface of said graphene platelet.
The s p acer-s fae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules comprise carbon produced by pyrolyzing a polymeric coating substance selected from the group consisting of phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene, and combination thereof.
The s p acer-s hrfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 1 nm.
The s p acer-s ufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said bumps or nodules have a height no less than 2 nm.
The s p acer-s uf faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet is single-layer graphene.
The s p acer-s urf aee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said graphene platelet has no more than 5 graphene layers.
The s p acer-s uw faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 500 m2/g.
The spacer-s uf faee-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet exhibits a specific surface area greater than 900 m2/g.
The s p acer-s tu faee-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 1,384 m2/g.
The s p acer- sufae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said modified nano graphene platelet or sheet exhibits a specific surface area greater than 2,600 m2/g.
An electrochemical cell electrode comprising a s p acer -suifaee- modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein at least one of the two electrodes comprises a s p acer-s uffa ee-modified nano graphene platelet or sheet as defined in claim 1.
A supercapacitor comprising two electrodes, a porous separator disposed between the two electrodes, and electrolyte in physical contact with the two electrodes, wherein each of the two electrodes comprises a spacer-s uf faee-modified nano graphene platelet 3 or sheet as defined in claim 1.
An electrochemical cell electrode comprising a plurality of sp acer- su fa ee-modified nano graphene platelets or graphene sheets as defined in claim 1, wherein multiple platelets or sheets form a stack having pores between platelets.
The s p acer -swfae e-modified nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-su rfae e-modif i ed nano graphene platelet or graphene sheet is activated to form an activated platelet or sheet.
The spacer-s tufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said spacer-s ufae e-modif i ed nano graphene platelet or sheet is functionalized.
The spacer-s ufae e-modif i ed nano graphene platelet or sheet as defined in claim 1, wherein said s p acer-s uf e e-modified nano graphene platelet or sheet is functionalized with one or more functional groups selected from the group consisting of --S O 3, -- R'COX, --R'(COOH)2, --CN, -- R'CH₂X, --OH, --R'CHO, --R'CN, wherein R' is a hydrocarbon radical, and wherein X is --NH2, -- OH, or a halogen.
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Layer stacks claimed or described, ordered top of device to substrate.
spacer-surface-modified nano graphene platelet
electrochemical cell electrode
supercapacitor
Materials described outside the worked examples.
nano graphene platelet (NGP)
non-metallic bumps or nodules (spacer)
Measurements and analyses referenced in the patent, with their drawing references.
FIG.1 A transmission electron microscopic image of NGPs without surface modification; graphene sheets significantly overlap one another to reduce the available …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
specific surface area of single graphene sheet (theoretical, background) | 2675 m2/g | single-layer graphene |
specific surface area of modified NGP (claimed lower bound, claim 11) | ≥ 500 m2/g |
Related documents with shared materials, methods, properties, or citations.
bumps/nodules material (carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide)
bumps/nodules specific materials (RuO2, IrO2, NiO, MnO2, VOx, TiO2, Cr₂O3, Co₂O3, PbO2, Ag₂O, MoCx, Mo₂N, WC, WNx)
pyrolyzed carbon from polymeric coating
polymeric coating precursor (phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene)
single-layer graphene
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 12) | ≥ 900 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 13) | ≥ 1384 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 14) | ≥ 2600 m2/g | nano graphene platelet (NGP) |
Thickness | 2–200 nm | — |
Duration | 15–60 seconds | — |
Duration | 0.5–5 hours | — |
Temperature | 150–200 °C | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.4 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≤ 2 nm | — |
bumps/nodules material (carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide)
bumps/nodules specific materials (RuO2, IrO2, NiO, MnO2, VOx, TiO2, Cr₂O3, Co₂O3, PbO2, Ag₂O, MoCx, Mo₂N, WC, WNx)
pyrolyzed carbon from polymeric coating
polymeric coating precursor (phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene)
single-layer graphene
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 12) | ≥ 900 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 13) | ≥ 1384 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 14) | ≥ 2600 m2/g | nano graphene platelet (NGP) |
Thickness | 2–200 nm | — |
Duration | 15–60 seconds | — |
Duration | 0.5–5 hours | — |
Temperature | 150–200 °C | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.4 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≤ 2 nm | — |
bumps/nodules material (carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide)
bumps/nodules specific materials (RuO2, IrO2, NiO, MnO2, VOx, TiO2, Cr₂O3, Co₂O3, PbO2, Ag₂O, MoCx, Mo₂N, WC, WNx)
pyrolyzed carbon from polymeric coating
polymeric coating precursor (phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene)
single-layer graphene
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 12) | ≥ 900 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 13) | ≥ 1384 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 14) | ≥ 2600 m2/g | nano graphene platelet (NGP) |
Thickness | 2–200 nm | — |
Duration | 15–60 seconds | — |
Duration | 0.5–5 hours | — |
Temperature | 150–200 °C | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.4 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≤ 2 nm | — |
bumps/nodules material (carbon, pitch, metal oxide, metal carbide, metal nitride, metal sulfide, metal halide)
bumps/nodules specific materials (RuO2, IrO2, NiO, MnO2, VOx, TiO2, Cr₂O3, Co₂O3, PbO2, Ag₂O, MoCx, Mo₂N, WC, WNx)
pyrolyzed carbon from polymeric coating
polymeric coating precursor (phenol-formaldehyde, polyacrylonitrile, styrene divinyl benzene, cellulosic polymers, polyfurfuryl alcohol, cyclotrimerized diethynyl benzene)
single-layer graphene
FIG.2 SEM image of slightly surface-modified NGPs, showing some surface nodules.
nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 12) | ≥ 900 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 13) | ≥ 1384 m2/g | nano graphene platelet (NGP) |
specific surface area of modified NGP (claimed lower bound, claim 14) | ≥ 2600 m2/g | nano graphene platelet (NGP) |
Thickness | 2–200 nm | — |
Duration | 15–60 seconds | — |
Duration | 0.5–5 hours | — |
Temperature | 150–200 °C | — |
Thickness | ≤ 1 nm | — |
Thickness | ≤ 0.4 nm | — |
Thickness | ≥ 10 nm | — |
Thickness | ≥ 2 nm | — |
Thickness | ≥ 1 nm | — |
Thickness | ≥ 0.4 nm | — |
Thickness | ≤ 2 nm | — |