Patent
US 10,145,029Graphene Fiber and Preparation Method Thereof
Xiaosong ZHOU
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,145,029Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
FIG. 3 is a schematic diagram of a microstructure of a silver nanowire doped graphene fiber according to an embodiment of the present application.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, wherein principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is about 0.1%-50%, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is about 0.5%-50%. Original
The graphene fiber according to claim 1, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowires are silver nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowire is about 3-300 nm in diameter and 100 nm- 50 m in length. Original
The graphene fiber according to claim 1, wherein the graphene fiber is a one-dimensional fiber and about 1 m-500 m in diameter. Original
The graphene fiber according to claim 1, wherein the graphene fiber is prepared by using graphene oxide and metal nanowire liquid crystals first through a wet spinning process, and then through chemical reduction or thermal reduction. Original
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is a range from 0.5 % to 50 %, the mass ratio of metal nanowires is 0.5 %, 20%, or 50 %, the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
9-18 Canceled
Canceled
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, the composite fiber comprises a graphene and metal nanowires, a mass ratio of metal nanowires is a range from 0.1 % to 50 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
A graphene fiber preparation method comprising: adding metal nanowires whose mass fraction is about 0.1 %-50% to graphene oxide liquid crystals whose mass concentration is about 0.3 %- 3 %, and then stirring at a speed of about 100-1000 rpm evenly to obtain graphene oxide-metal nanowire spinning sol; passing the obtained graphene oxide-metal nanowire spinning sol through a spinning tube that is 5-500 m in diameter at about a 1-100 mL/h extrusion speed and staying in about 5-80 ° C coagulating fluid for about 1- 100 s to coagulate into filaments; washing and drying the filaments to get an initial metal nanowire doped graphene oxide fiber; placing the initial metal nanowire doped graphene oxide fiber in a reducing agent for about 0.1- 100 h reduction; and washing or thermally reducing the initial metal nanowire doped graphene oxide fiber to get a final metal nanowire doped graphene fiber that is a composite fiber of metal nanowire doped graphene fiber whose principal components are graphene and metal nanowires, wherein a mass ratio of the metal nanowires is about 0.1 %-5 0 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. New
The graphene fiber preparation method according to claim 21, wherein the graphene oxide liquid crystals are obtained by adding a certain amount of graphene oxide in solvent and stirring, wherein the solvent comprises water, N,N-dimethylformamide, N,N- dimethylacetamide, N-Methyl-2-pyrrolidone, methanol, ethanol, isopropanol, butanol, and ethylene glycol. New
The graphene fiber preparation method according to claim 21, wherein a mass ratio of the metal nanowires in the graphene fiber is about 0.5 %, 20 %, or 50 %. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are silver nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are about 3-300 nm in diameter and about 100 nm- 50 m in length. New
The graphene fiber preparation method according to claim 21, wherein the coagulating fluid comprises sodium hydroxide, potassium hydroxide, calcium chloride, sodium nitrate, potassium nitrate, sodium chloride, potassium chloride, ferric chloride solution, and ethyl acetate. New
The graphene fiber preparation method according to claim 21, wherein the reducing agent comprises hydrazine hydrate, sodium borohydride, vitamin C, hydrobromic acid, hydriodic acid, acetic acid, and their mixture. New
The graphene fiber preparation method according to claim 21, wherein a temperature range
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials
A composite graphene fiber of metal nanowire doped graphene is described. The fiber's principal components are graphene sheets and metal nanowires arranged in parallel along the axial direction. The fiber is 1-500 µm in diameter. SEM images show nanowires in longitudinal orientation and graphene sheets in parallel layers. Silver nanowire doped graphene fiber achieves highest electrical conductivity of 93000 S/m, highest ampacity of 7100 A/cm2, tensile strength above 300 MPa, and extension at break around 5%.
6 materials1 process step
A graphene fiber preparation method using wet spinning. Graphene oxide is oxidized from natural or pyrolytic graphite and dispersed in solvent to form liquid crystals. Metal nanowires (0.1-50 wt%) are added to graphene oxide liquid crystals (0.3-3 wt%) and stirred at 100-1000 rpm. The spinning sol is extruded through a 5-500 µm spinning tube at 1-100 mL/h into 5-80°C coagulating fluid for 1-100 s. Filaments are washed and dried to yield metal nanowire doped graphene oxide fiber, then reduced chemically (0.1-100 h) or thermally (200-1000°C) to yield metal nanowire doped graphene fiber.
Layer stacks claimed or described, ordered top of device to substrate.
metal nanowire doped graphene fiber
Materials described outside the worked examples.
gold nanowires
Au
copper nanowires
Cu
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
highest electrical conductivity of silver nanowire doped graphene fiber | 93000 S/m | Ag |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,145,029Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
FIG. 3 is a schematic diagram of a microstructure of a silver nanowire doped graphene fiber according to an embodiment of the present application.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, wherein principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is about 0.1%-50%, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is about 0.5%-50%. Original
The graphene fiber according to claim 1, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowires are silver nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowire is about 3-300 nm in diameter and 100 nm- 50 m in length. Original
The graphene fiber according to claim 1, wherein the graphene fiber is a one-dimensional fiber and about 1 m-500 m in diameter. Original
The graphene fiber according to claim 1, wherein the graphene fiber is prepared by using graphene oxide and metal nanowire liquid crystals first through a wet spinning process, and then through chemical reduction or thermal reduction. Original
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is a range from 0.5 % to 50 %, the mass ratio of metal nanowires is 0.5 %, 20%, or 50 %, the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
9-18 Canceled
Canceled
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, the composite fiber comprises a graphene and metal nanowires, a mass ratio of metal nanowires is a range from 0.1 % to 50 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
A graphene fiber preparation method comprising: adding metal nanowires whose mass fraction is about 0.1 %-50% to graphene oxide liquid crystals whose mass concentration is about 0.3 %- 3 %, and then stirring at a speed of about 100-1000 rpm evenly to obtain graphene oxide-metal nanowire spinning sol; passing the obtained graphene oxide-metal nanowire spinning sol through a spinning tube that is 5-500 m in diameter at about a 1-100 mL/h extrusion speed and staying in about 5-80 ° C coagulating fluid for about 1- 100 s to coagulate into filaments; washing and drying the filaments to get an initial metal nanowire doped graphene oxide fiber; placing the initial metal nanowire doped graphene oxide fiber in a reducing agent for about 0.1- 100 h reduction; and washing or thermally reducing the initial metal nanowire doped graphene oxide fiber to get a final metal nanowire doped graphene fiber that is a composite fiber of metal nanowire doped graphene fiber whose principal components are graphene and metal nanowires, wherein a mass ratio of the metal nanowires is about 0.1 %-5 0 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. New
The graphene fiber preparation method according to claim 21, wherein the graphene oxide liquid crystals are obtained by adding a certain amount of graphene oxide in solvent and stirring, wherein the solvent comprises water, N,N-dimethylformamide, N,N- dimethylacetamide, N-Methyl-2-pyrrolidone, methanol, ethanol, isopropanol, butanol, and ethylene glycol. New
The graphene fiber preparation method according to claim 21, wherein a mass ratio of the metal nanowires in the graphene fiber is about 0.5 %, 20 %, or 50 %. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are silver nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are about 3-300 nm in diameter and about 100 nm- 50 m in length. New
The graphene fiber preparation method according to claim 21, wherein the coagulating fluid comprises sodium hydroxide, potassium hydroxide, calcium chloride, sodium nitrate, potassium nitrate, sodium chloride, potassium chloride, ferric chloride solution, and ethyl acetate. New
The graphene fiber preparation method according to claim 21, wherein the reducing agent comprises hydrazine hydrate, sodium borohydride, vitamin C, hydrobromic acid, hydriodic acid, acetic acid, and their mixture. New
The graphene fiber preparation method according to claim 21, wherein a temperature range
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials
A composite graphene fiber of metal nanowire doped graphene is described. The fiber's principal components are graphene sheets and metal nanowires arranged in parallel along the axial direction. The fiber is 1-500 µm in diameter. SEM images show nanowires in longitudinal orientation and graphene sheets in parallel layers. Silver nanowire doped graphene fiber achieves highest electrical conductivity of 93000 S/m, highest ampacity of 7100 A/cm2, tensile strength above 300 MPa, and extension at break around 5%.
6 materials1 process step
A graphene fiber preparation method using wet spinning. Graphene oxide is oxidized from natural or pyrolytic graphite and dispersed in solvent to form liquid crystals. Metal nanowires (0.1-50 wt%) are added to graphene oxide liquid crystals (0.3-3 wt%) and stirred at 100-1000 rpm. The spinning sol is extruded through a 5-500 µm spinning tube at 1-100 mL/h into 5-80°C coagulating fluid for 1-100 s. Filaments are washed and dried to yield metal nanowire doped graphene oxide fiber, then reduced chemically (0.1-100 h) or thermally (200-1000°C) to yield metal nanowire doped graphene fiber.
Layer stacks claimed or described, ordered top of device to substrate.
metal nanowire doped graphene fiber
Materials described outside the worked examples.
gold nanowires
Au
copper nanowires
Cu
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
highest electrical conductivity of silver nanowire doped graphene fiber | 93000 S/m | Ag |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,145,029Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
FIG. 3 is a schematic diagram of a microstructure of a silver nanowire doped graphene fiber according to an embodiment of the present application.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, wherein principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is about 0.1%-50%, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is about 0.5%-50%. Original
The graphene fiber according to claim 1, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowires are silver nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowire is about 3-300 nm in diameter and 100 nm- 50 m in length. Original
The graphene fiber according to claim 1, wherein the graphene fiber is a one-dimensional fiber and about 1 m-500 m in diameter. Original
The graphene fiber according to claim 1, wherein the graphene fiber is prepared by using graphene oxide and metal nanowire liquid crystals first through a wet spinning process, and then through chemical reduction or thermal reduction. Original
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is a range from 0.5 % to 50 %, the mass ratio of metal nanowires is 0.5 %, 20%, or 50 %, the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
9-18 Canceled
Canceled
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, the composite fiber comprises a graphene and metal nanowires, a mass ratio of metal nanowires is a range from 0.1 % to 50 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
A graphene fiber preparation method comprising: adding metal nanowires whose mass fraction is about 0.1 %-50% to graphene oxide liquid crystals whose mass concentration is about 0.3 %- 3 %, and then stirring at a speed of about 100-1000 rpm evenly to obtain graphene oxide-metal nanowire spinning sol; passing the obtained graphene oxide-metal nanowire spinning sol through a spinning tube that is 5-500 m in diameter at about a 1-100 mL/h extrusion speed and staying in about 5-80 ° C coagulating fluid for about 1- 100 s to coagulate into filaments; washing and drying the filaments to get an initial metal nanowire doped graphene oxide fiber; placing the initial metal nanowire doped graphene oxide fiber in a reducing agent for about 0.1- 100 h reduction; and washing or thermally reducing the initial metal nanowire doped graphene oxide fiber to get a final metal nanowire doped graphene fiber that is a composite fiber of metal nanowire doped graphene fiber whose principal components are graphene and metal nanowires, wherein a mass ratio of the metal nanowires is about 0.1 %-5 0 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. New
The graphene fiber preparation method according to claim 21, wherein the graphene oxide liquid crystals are obtained by adding a certain amount of graphene oxide in solvent and stirring, wherein the solvent comprises water, N,N-dimethylformamide, N,N- dimethylacetamide, N-Methyl-2-pyrrolidone, methanol, ethanol, isopropanol, butanol, and ethylene glycol. New
The graphene fiber preparation method according to claim 21, wherein a mass ratio of the metal nanowires in the graphene fiber is about 0.5 %, 20 %, or 50 %. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are silver nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are about 3-300 nm in diameter and about 100 nm- 50 m in length. New
The graphene fiber preparation method according to claim 21, wherein the coagulating fluid comprises sodium hydroxide, potassium hydroxide, calcium chloride, sodium nitrate, potassium nitrate, sodium chloride, potassium chloride, ferric chloride solution, and ethyl acetate. New
The graphene fiber preparation method according to claim 21, wherein the reducing agent comprises hydrazine hydrate, sodium borohydride, vitamin C, hydrobromic acid, hydriodic acid, acetic acid, and their mixture. New
The graphene fiber preparation method according to claim 21, wherein a temperature range
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials
A composite graphene fiber of metal nanowire doped graphene is described. The fiber's principal components are graphene sheets and metal nanowires arranged in parallel along the axial direction. The fiber is 1-500 µm in diameter. SEM images show nanowires in longitudinal orientation and graphene sheets in parallel layers. Silver nanowire doped graphene fiber achieves highest electrical conductivity of 93000 S/m, highest ampacity of 7100 A/cm2, tensile strength above 300 MPa, and extension at break around 5%.
6 materials1 process step
A graphene fiber preparation method using wet spinning. Graphene oxide is oxidized from natural or pyrolytic graphite and dispersed in solvent to form liquid crystals. Metal nanowires (0.1-50 wt%) are added to graphene oxide liquid crystals (0.3-3 wt%) and stirred at 100-1000 rpm. The spinning sol is extruded through a 5-500 µm spinning tube at 1-100 mL/h into 5-80°C coagulating fluid for 1-100 s. Filaments are washed and dried to yield metal nanowire doped graphene oxide fiber, then reduced chemically (0.1-100 h) or thermally (200-1000°C) to yield metal nanowire doped graphene fiber.
Layer stacks claimed or described, ordered top of device to substrate.
metal nanowire doped graphene fiber
Materials described outside the worked examples.
gold nanowires
Au
copper nanowires
Cu
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
highest electrical conductivity of silver nanowire doped graphene fiber | 93000 S/m | Ag |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,145,029Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
FIG. 3 is a schematic diagram of a microstructure of a silver nanowire doped graphene fiber according to an embodiment of the present application.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, wherein principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is about 0.1%-50%, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is about 0.5%-50%. Original
The graphene fiber according to claim 1, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowires are silver nanowires. Original
The graphene fiber according to claim 1, wherein the metal nanowire is about 3-300 nm in diameter and 100 nm- 50 m in length. Original
The graphene fiber according to claim 1, wherein the graphene fiber is a one-dimensional fiber and about 1 m-500 m in diameter. Original
The graphene fiber according to claim 1, wherein the graphene fiber is prepared by using graphene oxide and metal nanowire liquid crystals first through a wet spinning process, and then through chemical reduction or thermal reduction. Original
The graphene fiber according to claim 1, wherein the mass ratio of metal nanowires is a range from 0.5 % to 50 %, the mass ratio of metal nanowires is 0.5 %, 20%, or 50 %, the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. Original
9-18 Canceled
Canceled
A graphene fiber, wherein the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, the composite fiber comprises a graphene and metal nanowires, a mass ratio of metal nanowires is a range from 0.1 % to 50 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. Previously presented
A graphene fiber preparation method comprising: adding metal nanowires whose mass fraction is about 0.1 %-50% to graphene oxide liquid crystals whose mass concentration is about 0.3 %- 3 %, and then stirring at a speed of about 100-1000 rpm evenly to obtain graphene oxide-metal nanowire spinning sol; passing the obtained graphene oxide-metal nanowire spinning sol through a spinning tube that is 5-500 m in diameter at about a 1-100 mL/h extrusion speed and staying in about 5-80 ° C coagulating fluid for about 1- 100 s to coagulate into filaments; washing and drying the filaments to get an initial metal nanowire doped graphene oxide fiber; placing the initial metal nanowire doped graphene oxide fiber in a reducing agent for about 0.1- 100 h reduction; and washing or thermally reducing the initial metal nanowire doped graphene oxide fiber to get a final metal nanowire doped graphene fiber that is a composite fiber of metal nanowire doped graphene fiber whose principal components are graphene and metal nanowires, wherein a mass ratio of the metal nanowires is about 0.1 %-5 0 %, the graphene is in a form of plural graphene sheets arranged in parallel to each other, and both all of the metal nanowires and all of the graphene sheets are arranged in parallel along an axial direction of the graphene fiber. New
The graphene fiber preparation method according to claim 21, wherein the graphene oxide liquid crystals are obtained by adding a certain amount of graphene oxide in solvent and stirring, wherein the solvent comprises water, N,N-dimethylformamide, N,N- dimethylacetamide, N-Methyl-2-pyrrolidone, methanol, ethanol, isopropanol, butanol, and ethylene glycol. New
The graphene fiber preparation method according to claim 21, wherein a mass ratio of the metal nanowires in the graphene fiber is about 0.5 %, 20 %, or 50 %. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires comprise gold nanowires, silver nanowires, copper nanowires, Pt nanowires, iridium nanowires, rhodium nanowires, Fe nanowires, nickel nanowires, cobalt nanowires, zin c oxide nanowires, titanium nanowires, and alloy nanowires or hybrid nanowires of these nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are silver nanowires. New
The graphene fiber preparation method according to claim 21, wherein the metal nanowires are about 3-300 nm in diameter and about 100 nm- 50 m in length. New
The graphene fiber preparation method according to claim 21, wherein the coagulating fluid comprises sodium hydroxide, potassium hydroxide, calcium chloride, sodium nitrate, potassium nitrate, sodium chloride, potassium chloride, ferric chloride solution, and ethyl acetate. New
The graphene fiber preparation method according to claim 21, wherein the reducing agent comprises hydrazine hydrate, sodium borohydride, vitamin C, hydrobromic acid, hydriodic acid, acetic acid, and their mixture. New
The graphene fiber preparation method according to claim 21, wherein a temperature range
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials
A composite graphene fiber of metal nanowire doped graphene is described. The fiber's principal components are graphene sheets and metal nanowires arranged in parallel along the axial direction. The fiber is 1-500 µm in diameter. SEM images show nanowires in longitudinal orientation and graphene sheets in parallel layers. Silver nanowire doped graphene fiber achieves highest electrical conductivity of 93000 S/m, highest ampacity of 7100 A/cm2, tensile strength above 300 MPa, and extension at break around 5%.
6 materials1 process step
A graphene fiber preparation method using wet spinning. Graphene oxide is oxidized from natural or pyrolytic graphite and dispersed in solvent to form liquid crystals. Metal nanowires (0.1-50 wt%) are added to graphene oxide liquid crystals (0.3-3 wt%) and stirred at 100-1000 rpm. The spinning sol is extruded through a 5-500 µm spinning tube at 1-100 mL/h into 5-80°C coagulating fluid for 1-100 s. Filaments are washed and dried to yield metal nanowire doped graphene oxide fiber, then reduced chemically (0.1-100 h) or thermally (200-1000°C) to yield metal nanowire doped graphene fiber.
Layer stacks claimed or described, ordered top of device to substrate.
metal nanowire doped graphene fiber
Materials described outside the worked examples.
gold nanowires
Au
copper nanowires
Cu
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a scanning electron microscope photo of a surface of a graphene fiber according to an embodiment of the present application; [0010]
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
highest electrical conductivity of silver nanowire doped graphene fiber | 93000 S/m | Ag |
Related documents with shared materials, methods, properties, or citations.
Pt nanowires
Pt
iridium nanowires
Ir
rhodium nanowires
Rh
Fe nanowires
Fe
nickel nanowires
Ni
cobalt nanowires
Co
zinc oxide nanowires
ZnO
titanium nanowires
Ti
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
highest ampacity of silver nanowire doped graphene fiber | 7100 A/cm2 | Aggraphene |
tensile strength of silver nanowire doped graphene fiber | 300 MPa | Aggraphene |
extension at break of silver nanowire doped graphene fiber | 5 % | Aggraphene |
Duration | 1–10 hours | — |
Thickness | 3–300 nm | — |
Temperature | 5–80 °C | — |
Pressure | 10–800 MPa | — |
Temperature | ≤ 200 °C | — |
Pt nanowires
Pt
iridium nanowires
Ir
rhodium nanowires
Rh
Fe nanowires
Fe
nickel nanowires
Ni
cobalt nanowires
Co
zinc oxide nanowires
ZnO
titanium nanowires
Ti
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
highest ampacity of silver nanowire doped graphene fiber | 7100 A/cm2 | Aggraphene |
tensile strength of silver nanowire doped graphene fiber | 300 MPa | Aggraphene |
extension at break of silver nanowire doped graphene fiber | 5 % | Aggraphene |
Duration | 1–10 hours | — |
Thickness | 3–300 nm | — |
Temperature | 5–80 °C | — |
Pressure | 10–800 MPa | — |
Temperature | ≤ 200 °C | — |
Pt nanowires
Pt
iridium nanowires
Ir
rhodium nanowires
Rh
Fe nanowires
Fe
nickel nanowires
Ni
cobalt nanowires
Co
zinc oxide nanowires
ZnO
titanium nanowires
Ti
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
highest ampacity of silver nanowire doped graphene fiber | 7100 A/cm2 | Aggraphene |
tensile strength of silver nanowire doped graphene fiber | 300 MPa | Aggraphene |
extension at break of silver nanowire doped graphene fiber | 5 % | Aggraphene |
Duration | 1–10 hours | — |
Thickness | 3–300 nm | — |
Temperature | 5–80 °C | — |
Pressure | 10–800 MPa | — |
Temperature | ≤ 200 °C | — |
Pt nanowires
Pt
iridium nanowires
Ir
rhodium nanowires
Rh
Fe nanowires
Fe
nickel nanowires
Ni
cobalt nanowires
Co
zinc oxide nanowires
ZnO
titanium nanowires
Ti
FIG. 2 is a scanning electron microscope photo of a section of a graphene fiber according to an embodiment of the present application; and [0011]
highest ampacity of silver nanowire doped graphene fiber | 7100 A/cm2 | Aggraphene |
tensile strength of silver nanowire doped graphene fiber | 300 MPa | Aggraphene |
extension at break of silver nanowire doped graphene fiber | 5 % | Aggraphene |
Duration | 1–10 hours | — |
Thickness | 3–300 nm | — |
Temperature | 5–80 °C | — |
Pressure | 10–800 MPa | — |
Temperature | ≤ 200 °C | — |