Patent
US 9,422,165GRAPHENE COMPOSITIONS AND METHODS OF MAKING THE SAME
Arockiadoss Thevasaharam
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,422,165Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a non-limiting schematic for the production of graphene according to the methods described herein.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
Figure 3 B shows an EDAX spectrum of graphene sheets. 10 Detailed Description [0010] This description is not limited to the particular processes, compositions, or methodologies described, as these may vary. The terminology used in the description is for the purpose of describing the particular …
Figures 2A, 2B, and 2C show the graphitic oxide has number of graphene sheets and oxygen molecules are present interlayer's of the sheets, which can be exfoliated by catalytic as well as evaporation of volatile solvents. 25 During the exfoliation each sheets can be making bonds at the edge 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 method of preparing graphene, the method comprising: contacting a graphitic oxide composition with a photocatalytic-coated metal substrate or a photocatalytic-coated silicon wafer to yield graphene, wherein the graphitic oxide composition comprises graphitic oxide and an organic solvent.
The method of claim 1, the method further comprising preparing the graphitic oxide composition, the method of preparing the graphitic oxide composition comprising: dissolving graphite in a concentrated acid to produce an graphite-acid solution; contacting the graphite-acid solution with a nitrate or salt thereof to yield a graphite-acid- nitrate solution; contacting the graphite-acid-nitrate solution with an oxidizer to yield the graphitic oxide; purifying the graphitic oxide; and dissolving the purified graphitic oxide in the organic solvent to produce the graphitic oxide composition.
The method of claim 1, wherein the organic solvent is toluene, ethyl acetate, glycol ether, acetone, or any combination thereof.
The method of claim 1, wherein the graphitic oxide composition is coated on the photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer.
The method of claim 1, wherein the photocatalytic is Pd/W O 3, ZnO, Ru, [[TiO2]] TiOz, Pt, or any combination thereof.
The method of claim 1, wherein the metal substrate is an aluminum substrate, copper substrate, silver substrate, iron substrate, zin c substrate, or any combination thereof.
The method of claim 1, further comprising heating the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to a temperature of about 45 0 C to 85 0 C.
The method of claim 1, wherein the graphitic oxide composition is reacted with a photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer Attorney Docket No.: 138248.05001 Application No. 14/397,302 Page 7 of 9 by exposing the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to light to yield the graphene.
The method of claim 1, further comprising isolating the graphene.
The method of claim 1, wherein the graphene is a sheet of graphene.
The method of claim 1, wherein the graphene has high electrical conductivity.
The method of claim 1, wherein the graphitic oxide composition is graphic oxide dissolved in the organic solvent.
canceled
Materials described outside the worked examples.
graphene
graphitic oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–20 minutes | — |
Related documents with shared materials, methods, properties, or citations.
High-temperature stability of ambient-cured one-part alkali-activated materials incorporating graphene for thermal energy storage
ELECTRODE (ANODE AND CATHODE) PERFORMANCE ENHANCEMENT BY COMPOSITE FORMATION WITH GRAPHENE OXIDE
Patent
Atlas literature
Patent
US 9,422,165Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a non-limiting schematic for the production of graphene according to the methods described herein.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
Figure 3 B shows an EDAX spectrum of graphene sheets. 10 Detailed Description [0010] This description is not limited to the particular processes, compositions, or methodologies described, as these may vary. The terminology used in the description is for the purpose of describing the particular …
Figures 2A, 2B, and 2C show the graphitic oxide has number of graphene sheets and oxygen molecules are present interlayer's of the sheets, which can be exfoliated by catalytic as well as evaporation of volatile solvents. 25 During the exfoliation each sheets can be making bonds at the edge 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 method of preparing graphene, the method comprising: contacting a graphitic oxide composition with a photocatalytic-coated metal substrate or a photocatalytic-coated silicon wafer to yield graphene, wherein the graphitic oxide composition comprises graphitic oxide and an organic solvent.
The method of claim 1, the method further comprising preparing the graphitic oxide composition, the method of preparing the graphitic oxide composition comprising: dissolving graphite in a concentrated acid to produce an graphite-acid solution; contacting the graphite-acid solution with a nitrate or salt thereof to yield a graphite-acid- nitrate solution; contacting the graphite-acid-nitrate solution with an oxidizer to yield the graphitic oxide; purifying the graphitic oxide; and dissolving the purified graphitic oxide in the organic solvent to produce the graphitic oxide composition.
The method of claim 1, wherein the organic solvent is toluene, ethyl acetate, glycol ether, acetone, or any combination thereof.
The method of claim 1, wherein the graphitic oxide composition is coated on the photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer.
The method of claim 1, wherein the photocatalytic is Pd/W O 3, ZnO, Ru, [[TiO2]] TiOz, Pt, or any combination thereof.
The method of claim 1, wherein the metal substrate is an aluminum substrate, copper substrate, silver substrate, iron substrate, zin c substrate, or any combination thereof.
The method of claim 1, further comprising heating the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to a temperature of about 45 0 C to 85 0 C.
The method of claim 1, wherein the graphitic oxide composition is reacted with a photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer Attorney Docket No.: 138248.05001 Application No. 14/397,302 Page 7 of 9 by exposing the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to light to yield the graphene.
The method of claim 1, further comprising isolating the graphene.
The method of claim 1, wherein the graphene is a sheet of graphene.
The method of claim 1, wherein the graphene has high electrical conductivity.
The method of claim 1, wherein the graphitic oxide composition is graphic oxide dissolved in the organic solvent.
canceled
Materials described outside the worked examples.
graphene
graphitic oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–20 minutes | — |
Related documents with shared materials, methods, properties, or citations.
High-temperature stability of ambient-cured one-part alkali-activated materials incorporating graphene for thermal energy storage
ELECTRODE (ANODE AND CATHODE) PERFORMANCE ENHANCEMENT BY COMPOSITE FORMATION WITH GRAPHENE OXIDE
Patent
Atlas literature
Patent
US 9,422,165Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a non-limiting schematic for the production of graphene according to the methods described herein.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
Figure 3 B shows an EDAX spectrum of graphene sheets. 10 Detailed Description [0010] This description is not limited to the particular processes, compositions, or methodologies described, as these may vary. The terminology used in the description is for the purpose of describing the particular …
Figures 2A, 2B, and 2C show the graphitic oxide has number of graphene sheets and oxygen molecules are present interlayer's of the sheets, which can be exfoliated by catalytic as well as evaporation of volatile solvents. 25 During the exfoliation each sheets can be making bonds at the edge 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 method of preparing graphene, the method comprising: contacting a graphitic oxide composition with a photocatalytic-coated metal substrate or a photocatalytic-coated silicon wafer to yield graphene, wherein the graphitic oxide composition comprises graphitic oxide and an organic solvent.
The method of claim 1, the method further comprising preparing the graphitic oxide composition, the method of preparing the graphitic oxide composition comprising: dissolving graphite in a concentrated acid to produce an graphite-acid solution; contacting the graphite-acid solution with a nitrate or salt thereof to yield a graphite-acid- nitrate solution; contacting the graphite-acid-nitrate solution with an oxidizer to yield the graphitic oxide; purifying the graphitic oxide; and dissolving the purified graphitic oxide in the organic solvent to produce the graphitic oxide composition.
The method of claim 1, wherein the organic solvent is toluene, ethyl acetate, glycol ether, acetone, or any combination thereof.
The method of claim 1, wherein the graphitic oxide composition is coated on the photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer.
The method of claim 1, wherein the photocatalytic is Pd/W O 3, ZnO, Ru, [[TiO2]] TiOz, Pt, or any combination thereof.
The method of claim 1, wherein the metal substrate is an aluminum substrate, copper substrate, silver substrate, iron substrate, zin c substrate, or any combination thereof.
The method of claim 1, further comprising heating the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to a temperature of about 45 0 C to 85 0 C.
The method of claim 1, wherein the graphitic oxide composition is reacted with a photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer Attorney Docket No.: 138248.05001 Application No. 14/397,302 Page 7 of 9 by exposing the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to light to yield the graphene.
The method of claim 1, further comprising isolating the graphene.
The method of claim 1, wherein the graphene is a sheet of graphene.
The method of claim 1, wherein the graphene has high electrical conductivity.
The method of claim 1, wherein the graphitic oxide composition is graphic oxide dissolved in the organic solvent.
canceled
Materials described outside the worked examples.
graphene
graphitic oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–20 minutes | — |
Related documents with shared materials, methods, properties, or citations.
High-temperature stability of ambient-cured one-part alkali-activated materials incorporating graphene for thermal energy storage
ELECTRODE (ANODE AND CATHODE) PERFORMANCE ENHANCEMENT BY COMPOSITE FORMATION WITH GRAPHENE OXIDE
Patent
Atlas literature
Patent
US 9,422,165Patent drawings and their descriptions. Click a drawing to enlarge it.
Figure 1 shows a non-limiting schematic for the production of graphene according to the methods described herein.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
Figure 3 B shows an EDAX spectrum of graphene sheets. 10 Detailed Description [0010] This description is not limited to the particular processes, compositions, or methodologies described, as these may vary. The terminology used in the description is for the purpose of describing the particular …
Figures 2A, 2B, and 2C show the graphitic oxide has number of graphene sheets and oxygen molecules are present interlayer's of the sheets, which can be exfoliated by catalytic as well as evaporation of volatile solvents. 25 During the exfoliation each sheets can be making bonds at the edge 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 method of preparing graphene, the method comprising: contacting a graphitic oxide composition with a photocatalytic-coated metal substrate or a photocatalytic-coated silicon wafer to yield graphene, wherein the graphitic oxide composition comprises graphitic oxide and an organic solvent.
The method of claim 1, the method further comprising preparing the graphitic oxide composition, the method of preparing the graphitic oxide composition comprising: dissolving graphite in a concentrated acid to produce an graphite-acid solution; contacting the graphite-acid solution with a nitrate or salt thereof to yield a graphite-acid- nitrate solution; contacting the graphite-acid-nitrate solution with an oxidizer to yield the graphitic oxide; purifying the graphitic oxide; and dissolving the purified graphitic oxide in the organic solvent to produce the graphitic oxide composition.
The method of claim 1, wherein the organic solvent is toluene, ethyl acetate, glycol ether, acetone, or any combination thereof.
The method of claim 1, wherein the graphitic oxide composition is coated on the photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer.
The method of claim 1, wherein the photocatalytic is Pd/W O 3, ZnO, Ru, [[TiO2]] TiOz, Pt, or any combination thereof.
The method of claim 1, wherein the metal substrate is an aluminum substrate, copper substrate, silver substrate, iron substrate, zin c substrate, or any combination thereof.
The method of claim 1, further comprising heating the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to a temperature of about 45 0 C to 85 0 C.
The method of claim 1, wherein the graphitic oxide composition is reacted with a photocatalytic coated metal substrate or the photocatalytic-coated silicon wafer Attorney Docket No.: 138248.05001 Application No. 14/397,302 Page 7 of 9 by exposing the graphitic oxide composition and the photocatalytic-coated metal substrate or the photocatalytic-coated silicon wafer to light to yield the graphene.
The method of claim 1, further comprising isolating the graphene.
The method of claim 1, wherein the graphene is a sheet of graphene.
The method of claim 1, wherein the graphene has high electrical conductivity.
The method of claim 1, wherein the graphitic oxide composition is graphic oxide dissolved in the organic solvent.
canceled
Materials described outside the worked examples.
graphene
graphitic oxide
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Figure 2 shows SEM images of (A) several layers of graphitic oxide on 5 Pd/W O 3 surface; (B) Single sheet of graphene exfoliated during exfoliation; and (C) single sheet of Graphene as separated.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Duration | 5–20 minutes | — |
Related documents with shared materials, methods, properties, or citations.
High-temperature stability of ambient-cured one-part alkali-activated materials incorporating graphene for thermal energy storage
ELECTRODE (ANODE AND CATHODE) PERFORMANCE ENHANCEMENT BY COMPOSITE FORMATION WITH GRAPHENE OXIDE
organic solvent
graphite
concentrated acid
nitrate or salt thereof
oxidizer
photocatalytic coating
metal substrate
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
organic solvent
graphite
concentrated acid
nitrate or salt thereof
oxidizer
photocatalytic coating
metal substrate
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
organic solvent
graphite
concentrated acid
nitrate or salt thereof
oxidizer
photocatalytic coating
metal substrate
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene
organic solvent
graphite
concentrated acid
nitrate or salt thereof
oxidizer
photocatalytic coating
metal substrate
Figure 3A shows a XRD spectrum of graphitic oxide and graphene. The upper line is graphitic oxide, and the lower line is graphene