Patent
US 8,519,045GRAPHENE COMPOSITE NANOFIBER AND PREPARATION METHOD THEREOF
Sung-Yeon JANG
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,519,045Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic view showing a method for preparing a graphene composite nanofiber according to the present invention. Preparation of Spinnin g Solution 5 …
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface 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.
(Cu rr ently Amended) A graphene composite nanofiber in which graphenes are dispersed to at least one of a surface and inside of a polymer nanofiber or a carbon nanofiber having a diameter of 1~1000 nm, wherein the graphenes comprise at least one t ype e one selected from monolayer graphenes, [[and]] multilayer graphenes having a thickness of lO nm or less, and a combination thereof; wherein i) 90% of the g raphenes are present as monolayer graphenes: ii) the graphenes are graphene oxides or reduced form of the graphene oxides; and iii) the composite nanofiber has no entangled fibers or graphite lumps.
The graphene composite nanofiber of claim 1, wherein the graphenes are oriented parallel to an axis of the polymer nanofiber or the carbon nanofiber.
The graphene composite nanofiber of claim 1, wherein the polymer nanofiber or the carbon nanofiber having the graphenes dispersed therein is produced by electrospinning a solution containing graphenes and polymers.
.
A method for preparing a graphene composite nanofiber, the method comprising: preparing a spinning solution in which polymers are dissolved and graphenes are dispersed, wherein the graphenes comprise at least one type of monolayer graphenes, and multilayer graphenes having a thickness of lO nm or less; and spinning the spinning solution in the form of fibers in an electric field, thereby preparing a graphene composite nanofiber where the polymers and the graphenes are combined with each other.
3717. -3- (0 1433717. 1}
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
A PVA/graphene composite nanofiber was prepared by electrospinning a spinning solution containing PVA polymer and graphenes (monolayer and multilayer graphene oxides). The resulting nanofiber was characterized by SEM and TEM, showing well-dispersed graphenes oriented parallel to the fiber axis.
Layer stacks claimed or described, ordered top of device to substrate.
graphene composite nanofiber
Materials described outside the worked examples.
carbon nanofiber
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 5 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,519,045Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic view showing a method for preparing a graphene composite nanofiber according to the present invention. Preparation of Spinnin g Solution 5 …
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface 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.
(Cu rr ently Amended) A graphene composite nanofiber in which graphenes are dispersed to at least one of a surface and inside of a polymer nanofiber or a carbon nanofiber having a diameter of 1~1000 nm, wherein the graphenes comprise at least one t ype e one selected from monolayer graphenes, [[and]] multilayer graphenes having a thickness of lO nm or less, and a combination thereof; wherein i) 90% of the g raphenes are present as monolayer graphenes: ii) the graphenes are graphene oxides or reduced form of the graphene oxides; and iii) the composite nanofiber has no entangled fibers or graphite lumps.
The graphene composite nanofiber of claim 1, wherein the graphenes are oriented parallel to an axis of the polymer nanofiber or the carbon nanofiber.
The graphene composite nanofiber of claim 1, wherein the polymer nanofiber or the carbon nanofiber having the graphenes dispersed therein is produced by electrospinning a solution containing graphenes and polymers.
.
A method for preparing a graphene composite nanofiber, the method comprising: preparing a spinning solution in which polymers are dissolved and graphenes are dispersed, wherein the graphenes comprise at least one type of monolayer graphenes, and multilayer graphenes having a thickness of lO nm or less; and spinning the spinning solution in the form of fibers in an electric field, thereby preparing a graphene composite nanofiber where the polymers and the graphenes are combined with each other.
3717. -3- (0 1433717. 1}
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
A PVA/graphene composite nanofiber was prepared by electrospinning a spinning solution containing PVA polymer and graphenes (monolayer and multilayer graphene oxides). The resulting nanofiber was characterized by SEM and TEM, showing well-dispersed graphenes oriented parallel to the fiber axis.
Layer stacks claimed or described, ordered top of device to substrate.
graphene composite nanofiber
Materials described outside the worked examples.
carbon nanofiber
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 5 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,519,045Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic view showing a method for preparing a graphene composite nanofiber according to the present invention. Preparation of Spinnin g Solution 5 …
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface 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.
(Cu rr ently Amended) A graphene composite nanofiber in which graphenes are dispersed to at least one of a surface and inside of a polymer nanofiber or a carbon nanofiber having a diameter of 1~1000 nm, wherein the graphenes comprise at least one t ype e one selected from monolayer graphenes, [[and]] multilayer graphenes having a thickness of lO nm or less, and a combination thereof; wherein i) 90% of the g raphenes are present as monolayer graphenes: ii) the graphenes are graphene oxides or reduced form of the graphene oxides; and iii) the composite nanofiber has no entangled fibers or graphite lumps.
The graphene composite nanofiber of claim 1, wherein the graphenes are oriented parallel to an axis of the polymer nanofiber or the carbon nanofiber.
The graphene composite nanofiber of claim 1, wherein the polymer nanofiber or the carbon nanofiber having the graphenes dispersed therein is produced by electrospinning a solution containing graphenes and polymers.
.
A method for preparing a graphene composite nanofiber, the method comprising: preparing a spinning solution in which polymers are dissolved and graphenes are dispersed, wherein the graphenes comprise at least one type of monolayer graphenes, and multilayer graphenes having a thickness of lO nm or less; and spinning the spinning solution in the form of fibers in an electric field, thereby preparing a graphene composite nanofiber where the polymers and the graphenes are combined with each other.
3717. -3- (0 1433717. 1}
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
A PVA/graphene composite nanofiber was prepared by electrospinning a spinning solution containing PVA polymer and graphenes (monolayer and multilayer graphene oxides). The resulting nanofiber was characterized by SEM and TEM, showing well-dispersed graphenes oriented parallel to the fiber axis.
Layer stacks claimed or described, ordered top of device to substrate.
graphene composite nanofiber
Materials described outside the worked examples.
carbon nanofiber
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 5 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 8,519,045Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a schematic view showing a method for preparing a graphene composite nanofiber according to the present invention. Preparation of Spinnin g Solution 5 …
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface 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.
(Cu rr ently Amended) A graphene composite nanofiber in which graphenes are dispersed to at least one of a surface and inside of a polymer nanofiber or a carbon nanofiber having a diameter of 1~1000 nm, wherein the graphenes comprise at least one t ype e one selected from monolayer graphenes, [[and]] multilayer graphenes having a thickness of lO nm or less, and a combination thereof; wherein i) 90% of the g raphenes are present as monolayer graphenes: ii) the graphenes are graphene oxides or reduced form of the graphene oxides; and iii) the composite nanofiber has no entangled fibers or graphite lumps.
The graphene composite nanofiber of claim 1, wherein the graphenes are oriented parallel to an axis of the polymer nanofiber or the carbon nanofiber.
The graphene composite nanofiber of claim 1, wherein the polymer nanofiber or the carbon nanofiber having the graphenes dispersed therein is produced by electrospinning a solution containing graphenes and polymers.
.
A method for preparing a graphene composite nanofiber, the method comprising: preparing a spinning solution in which polymers are dissolved and graphenes are dispersed, wherein the graphenes comprise at least one type of monolayer graphenes, and multilayer graphenes having a thickness of lO nm or less; and spinning the spinning solution in the form of fibers in an electric field, thereby preparing a graphene composite nanofiber where the polymers and the graphenes are combined with each other.
3717. -3- (0 1433717. 1}
Embodiments described in the patent, grouped by the materials and process steps they use.
4 materials1 process step
A PVA/graphene composite nanofiber was prepared by electrospinning a spinning solution containing PVA polymer and graphenes (monolayer and multilayer graphene oxides). The resulting nanofiber was characterized by SEM and TEM, showing well-dispersed graphenes oriented parallel to the fiber axis.
Layer stacks claimed or described, ordered top of device to substrate.
graphene composite nanofiber
Materials described outside the worked examples.
carbon nanofiber
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | ≤ 5 nm | — |
Thickness |
Related documents with shared materials, methods, properties, or citations.
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
| — |
— | ≥ 200 W | — |
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
| — |
— | ≥ 200 W | — |
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
| — |
— | ≥ 200 W | — |
FIG. 2 is an image showing a graphene dispersion solution after seven 10 days, the solution in which monolayer graphenes and multilayer graphenes having a …
FIG. 3 is a transmission electron microscopy (TEM) image of the graphene dispersion solution of
FIG. 4 shows a scanning electron microscopy (SEM) image of a PVA fiber including no graphenes;
FIG. 5 shows a scanning electron microscopy (SEM) image of a PVA/graphene composite nanofiber prepared according to a first embodiment of the present invention; …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
FIG. 6, graphenes were oriented, in a position selection manner, with a thickness less than 5 nm (less than about ten layers) towards the surface of the …
| — |
— | ≥ 200 W | — |