Patent
US 9,249,022GRAPHENE/CARBON NANOTUBE NANOSTRUCTURE AND MANUFACTURING METHOD THEREOF
Il-Kwon Oh
US
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Patent
Atlas literature
Patent
US 9,249,022Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
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 of manufacturing a graphene-carbon nanotube nanostructure, comprising: mixing materials consisting of graphite, a catalytic metal, and an ionic liquid without a solvent, the graphite and the catalytic metal being included in a ratio of 1:0.05 to 1:1, and radiating microwaves to the mixture, wherein in the microwave radiation on the mixture, the graphite expands in volume and forms graphene, and carbon nanotubes grow in place of the catalytic metal.
The method of claim 1, wherein the catalytic metal comprises palladium (Pd), nickel (Ni), cobalt (Co), iron (Fe), or a combination thereof.
The method of claim 1, further comprising grinding the catalytic metal before mixing the graphite, the catalytic metal, and the ionic liquid.
The method of claim 1, wherein the ionic liquid comprises at least one of a 1 -ethyl-3-methylimidazolium (E MIM)-based ionic liquid and a 1-butyl-3-methylimidazolium (BMIM)-based ionic liquid.
The method of claim 1, wherein the graphite and the ionic liquid are included in a ratio of 1:0.1 to 1:1.
The method of claim 1, wherein the graphite, the catalytic metal and the ionic liquid are included in a ratio of 1:0.2:0.5.
The method of claim 1, wherein the mixture is prepared by mixing the catalytic metal and the ionic liquid, and then adding the graphite thereto.
The method of claim 1, wherein the microwave radiating microwaves with an intensity of 100 to
canceled
canceled
canceled
4 canceled ultrasonication after performing at least one of adding the graphite thereto. radiation on the mixture is performed by 2000 W. radiation on the mixture is performed by
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Graphite, palladium (Pd) powder, and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF₄) were prepared in a weight ratio of 1:0.2:0.5 to manufacture a graphene-carbon nanotube nanostructure by microwave radiation.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-carbon nanotube nanostructure
Materials described outside the worked examples.
catalytic metal
ionic liquid
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene plane area | 1–2500 nm2 | C |
carbon nanotube width | 10–100 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,249,022Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
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 of manufacturing a graphene-carbon nanotube nanostructure, comprising: mixing materials consisting of graphite, a catalytic metal, and an ionic liquid without a solvent, the graphite and the catalytic metal being included in a ratio of 1:0.05 to 1:1, and radiating microwaves to the mixture, wherein in the microwave radiation on the mixture, the graphite expands in volume and forms graphene, and carbon nanotubes grow in place of the catalytic metal.
The method of claim 1, wherein the catalytic metal comprises palladium (Pd), nickel (Ni), cobalt (Co), iron (Fe), or a combination thereof.
The method of claim 1, further comprising grinding the catalytic metal before mixing the graphite, the catalytic metal, and the ionic liquid.
The method of claim 1, wherein the ionic liquid comprises at least one of a 1 -ethyl-3-methylimidazolium (E MIM)-based ionic liquid and a 1-butyl-3-methylimidazolium (BMIM)-based ionic liquid.
The method of claim 1, wherein the graphite and the ionic liquid are included in a ratio of 1:0.1 to 1:1.
The method of claim 1, wherein the graphite, the catalytic metal and the ionic liquid are included in a ratio of 1:0.2:0.5.
The method of claim 1, wherein the mixture is prepared by mixing the catalytic metal and the ionic liquid, and then adding the graphite thereto.
The method of claim 1, wherein the microwave radiating microwaves with an intensity of 100 to
canceled
canceled
canceled
4 canceled ultrasonication after performing at least one of adding the graphite thereto. radiation on the mixture is performed by 2000 W. radiation on the mixture is performed by
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Graphite, palladium (Pd) powder, and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF₄) were prepared in a weight ratio of 1:0.2:0.5 to manufacture a graphene-carbon nanotube nanostructure by microwave radiation.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-carbon nanotube nanostructure
Materials described outside the worked examples.
catalytic metal
ionic liquid
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene plane area | 1–2500 nm2 | C |
carbon nanotube width | 10–100 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,249,022Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
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 of manufacturing a graphene-carbon nanotube nanostructure, comprising: mixing materials consisting of graphite, a catalytic metal, and an ionic liquid without a solvent, the graphite and the catalytic metal being included in a ratio of 1:0.05 to 1:1, and radiating microwaves to the mixture, wherein in the microwave radiation on the mixture, the graphite expands in volume and forms graphene, and carbon nanotubes grow in place of the catalytic metal.
The method of claim 1, wherein the catalytic metal comprises palladium (Pd), nickel (Ni), cobalt (Co), iron (Fe), or a combination thereof.
The method of claim 1, further comprising grinding the catalytic metal before mixing the graphite, the catalytic metal, and the ionic liquid.
The method of claim 1, wherein the ionic liquid comprises at least one of a 1 -ethyl-3-methylimidazolium (E MIM)-based ionic liquid and a 1-butyl-3-methylimidazolium (BMIM)-based ionic liquid.
The method of claim 1, wherein the graphite and the ionic liquid are included in a ratio of 1:0.1 to 1:1.
The method of claim 1, wherein the graphite, the catalytic metal and the ionic liquid are included in a ratio of 1:0.2:0.5.
The method of claim 1, wherein the mixture is prepared by mixing the catalytic metal and the ionic liquid, and then adding the graphite thereto.
The method of claim 1, wherein the microwave radiating microwaves with an intensity of 100 to
canceled
canceled
canceled
4 canceled ultrasonication after performing at least one of adding the graphite thereto. radiation on the mixture is performed by 2000 W. radiation on the mixture is performed by
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Graphite, palladium (Pd) powder, and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF₄) were prepared in a weight ratio of 1:0.2:0.5 to manufacture a graphene-carbon nanotube nanostructure by microwave radiation.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-carbon nanotube nanostructure
Materials described outside the worked examples.
catalytic metal
ionic liquid
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene plane area | 1–2500 nm2 | C |
carbon nanotube width | 10–100 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,249,022Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
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 of manufacturing a graphene-carbon nanotube nanostructure, comprising: mixing materials consisting of graphite, a catalytic metal, and an ionic liquid without a solvent, the graphite and the catalytic metal being included in a ratio of 1:0.05 to 1:1, and radiating microwaves to the mixture, wherein in the microwave radiation on the mixture, the graphite expands in volume and forms graphene, and carbon nanotubes grow in place of the catalytic metal.
The method of claim 1, wherein the catalytic metal comprises palladium (Pd), nickel (Ni), cobalt (Co), iron (Fe), or a combination thereof.
The method of claim 1, further comprising grinding the catalytic metal before mixing the graphite, the catalytic metal, and the ionic liquid.
The method of claim 1, wherein the ionic liquid comprises at least one of a 1 -ethyl-3-methylimidazolium (E MIM)-based ionic liquid and a 1-butyl-3-methylimidazolium (BMIM)-based ionic liquid.
The method of claim 1, wherein the graphite and the ionic liquid are included in a ratio of 1:0.1 to 1:1.
The method of claim 1, wherein the graphite, the catalytic metal and the ionic liquid are included in a ratio of 1:0.2:0.5.
The method of claim 1, wherein the mixture is prepared by mixing the catalytic metal and the ionic liquid, and then adding the graphite thereto.
The method of claim 1, wherein the microwave radiating microwaves with an intensity of 100 to
canceled
canceled
canceled
4 canceled ultrasonication after performing at least one of adding the graphite thereto. radiation on the mixture is performed by 2000 W. radiation on the mixture is performed by
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials1 process step
Graphite, palladium (Pd) powder, and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM-BF₄) were prepared in a weight ratio of 1:0.2:0.5 to manufacture a graphene-carbon nanotube nanostructure by microwave radiation.
Layer stacks claimed or described, ordered top of device to substrate.
graphene-carbon nanotube nanostructure
Materials described outside the worked examples.
catalytic metal
ionic liquid
Measurements and analyses referenced in the patent, with their drawing references.
FIGS. 1 to 3 are scanning electron microscope (SEM) photographs respectively showing 4 pm, 400 nm, and 100 nm magnifications of a graphene- 15 carbon nanotube …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
graphene plane area | 1–2500 nm2 | C |
carbon nanotube width | 10–100 nm |
Related documents with shared materials, methods, properties, or citations.
graphene-carbon nanotube nanostructure
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
carbon nanotube length | 10–10000 nm | C |
— | 100–2000 W | — |
Duration | 1–1000 seconds | — |
graphene-carbon nanotube nanostructure
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
carbon nanotube length | 10–10000 nm | C |
— | 100–2000 W | — |
Duration | 1–1000 seconds | — |
graphene-carbon nanotube nanostructure
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
carbon nanotube length | 10–10000 nm | C |
— | 100–2000 W | — |
Duration | 1–1000 seconds | — |
graphene-carbon nanotube nanostructure
FIG. 4 is a transmission electron microscope (TEM) photograph showing the graphene-carbon nanotube nanostructure of the example.
carbon nanotube length | 10–10000 nm | C |
— | 100–2000 W | — |
Duration | 1–1000 seconds | — |