Patent
US 9,410,041Method of surface Modifying Graphene
Mark Y. WU
US
Copyright © 2026 Matter42. All rights reserved.
Patent details
Patent
US 9,410,041Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the method of the present 5 invention generally comprises a surface cleaning step S 1 0 and a surface treatment step S 20 sequentially performed to …
FIG. 2 is a view showing the effect of physical adsorption for the surface modified graphene according to the present invention; [0018]
FIG. 3 shows an X-ray spectrum for the surface modified graphene powder, and it is clearly proved that the surface has a nitrogen containing functional group.
FIG. 4 illustrates the state,in which the grapnene powder dis ispersed in water, and
FIG. 5 is a view showing the original grapnene sheets dispersed in water. By comparing FIG s. 4 and 5, it is found that the surface of the surface modified …
FIG. 6 is an X-ray spectrum for the surface modified graphene powder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0022] The accompanying drawings are …
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 surface modifying graphene for performing a surface modifying process on graphene, comprising: a surface cleaning step for placing a graphene powder mixed with a surface modifying agent in a closed container in vacuum, heating the graphene powder up to a treatment temperature higher than a preset impurity desorption temperature for a period of time to desorb an impurity attached to the surface of the graphene powder by vacuum and heating such that the impurity is removed due to thermal decomposition into gas dispersing away; and a surface treatment step for adjusting the treatment temperature to a surface modifying adsorption temperature that is higher than the sublimation point of the surface modifying agent and lower than a thermal decomposition temperature of the surface modifying agent and injecting a gaseous surface modifying agent having a sublimation point such that the surface modifying agent is adsorbed on the surface of the graphene powder due to a physical adsorption effect of 7E-7E stacking and surface modified graphene is obtained to accomplish the method of surface modifying graphene.
The method as claimed in claim 1, wherein the closed container in vacuum has pressure lower than 1 0 2 torr, and the impurity desorption temperature is higher than 1000C.
The method as claimed in claim 1, wherein the surface modifying agent is specified by a chemical formula, Rx-Ry', R is selected from at least one group of benzene ring, pyridine and triazine, R' is selected from at least one group of amino, alkoxy, carbonyl, carboxyl, acetoxy, amido, alkyleneoxy, dimethylamino and alkyleneoxycarboxyl, 1 SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.436.2589.548.2625.svg 0.12 0.373 Chemistry Black and white 4 and SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.683.2586.804.2634.svg 0.16 0.403 Chemistry Black and white 10.
The method as claimed in claim 1, wherein the surface modifying agent is selected from a group consisting of at least one of benzoic acid, o-phthalate acid and melamine.
canceled
Materials described outside the worked examples.
graphene powder
surface modifying agent (Rx-Ry' type)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.01 torr | — |
Pressure |
Patent details
Patent
US 9,410,041Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the method of the present 5 invention generally comprises a surface cleaning step S 1 0 and a surface treatment step S 20 sequentially performed to …
FIG. 2 is a view showing the effect of physical adsorption for the surface modified graphene according to the present invention; [0018]
FIG. 3 shows an X-ray spectrum for the surface modified graphene powder, and it is clearly proved that the surface has a nitrogen containing functional group.
FIG. 4 illustrates the state,in which the grapnene powder dis ispersed in water, and
FIG. 5 is a view showing the original grapnene sheets dispersed in water. By comparing FIG s. 4 and 5, it is found that the surface of the surface modified …
FIG. 6 is an X-ray spectrum for the surface modified graphene powder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0022] The accompanying drawings are …
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 surface modifying graphene for performing a surface modifying process on graphene, comprising: a surface cleaning step for placing a graphene powder mixed with a surface modifying agent in a closed container in vacuum, heating the graphene powder up to a treatment temperature higher than a preset impurity desorption temperature for a period of time to desorb an impurity attached to the surface of the graphene powder by vacuum and heating such that the impurity is removed due to thermal decomposition into gas dispersing away; and a surface treatment step for adjusting the treatment temperature to a surface modifying adsorption temperature that is higher than the sublimation point of the surface modifying agent and lower than a thermal decomposition temperature of the surface modifying agent and injecting a gaseous surface modifying agent having a sublimation point such that the surface modifying agent is adsorbed on the surface of the graphene powder due to a physical adsorption effect of 7E-7E stacking and surface modified graphene is obtained to accomplish the method of surface modifying graphene.
The method as claimed in claim 1, wherein the closed container in vacuum has pressure lower than 1 0 2 torr, and the impurity desorption temperature is higher than 1000C.
The method as claimed in claim 1, wherein the surface modifying agent is specified by a chemical formula, Rx-Ry', R is selected from at least one group of benzene ring, pyridine and triazine, R' is selected from at least one group of amino, alkoxy, carbonyl, carboxyl, acetoxy, amido, alkyleneoxy, dimethylamino and alkyleneoxycarboxyl, 1 SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.436.2589.548.2625.svg 0.12 0.373 Chemistry Black and white 4 and SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.683.2586.804.2634.svg 0.16 0.403 Chemistry Black and white 10.
The method as claimed in claim 1, wherein the surface modifying agent is selected from a group consisting of at least one of benzoic acid, o-phthalate acid and melamine.
canceled
Materials described outside the worked examples.
graphene powder
surface modifying agent (Rx-Ry' type)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.01 torr | — |
Pressure |
Patent details
Patent
US 9,410,041Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the method of the present 5 invention generally comprises a surface cleaning step S 1 0 and a surface treatment step S 20 sequentially performed to …
FIG. 2 is a view showing the effect of physical adsorption for the surface modified graphene according to the present invention; [0018]
FIG. 3 shows an X-ray spectrum for the surface modified graphene powder, and it is clearly proved that the surface has a nitrogen containing functional group.
FIG. 4 illustrates the state,in which the grapnene powder dis ispersed in water, and
FIG. 5 is a view showing the original grapnene sheets dispersed in water. By comparing FIG s. 4 and 5, it is found that the surface of the surface modified …
FIG. 6 is an X-ray spectrum for the surface modified graphene powder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0022] The accompanying drawings are …
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 surface modifying graphene for performing a surface modifying process on graphene, comprising: a surface cleaning step for placing a graphene powder mixed with a surface modifying agent in a closed container in vacuum, heating the graphene powder up to a treatment temperature higher than a preset impurity desorption temperature for a period of time to desorb an impurity attached to the surface of the graphene powder by vacuum and heating such that the impurity is removed due to thermal decomposition into gas dispersing away; and a surface treatment step for adjusting the treatment temperature to a surface modifying adsorption temperature that is higher than the sublimation point of the surface modifying agent and lower than a thermal decomposition temperature of the surface modifying agent and injecting a gaseous surface modifying agent having a sublimation point such that the surface modifying agent is adsorbed on the surface of the graphene powder due to a physical adsorption effect of 7E-7E stacking and surface modified graphene is obtained to accomplish the method of surface modifying graphene.
The method as claimed in claim 1, wherein the closed container in vacuum has pressure lower than 1 0 2 torr, and the impurity desorption temperature is higher than 1000C.
The method as claimed in claim 1, wherein the surface modifying agent is specified by a chemical formula, Rx-Ry', R is selected from at least one group of benzene ring, pyridine and triazine, R' is selected from at least one group of amino, alkoxy, carbonyl, carboxyl, acetoxy, amido, alkyleneoxy, dimethylamino and alkyleneoxycarboxyl, 1 SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.436.2589.548.2625.svg 0.12 0.373 Chemistry Black and white 4 and SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.683.2586.804.2634.svg 0.16 0.403 Chemistry Black and white 10.
The method as claimed in claim 1, wherein the surface modifying agent is selected from a group consisting of at least one of benzoic acid, o-phthalate acid and melamine.
canceled
Materials described outside the worked examples.
graphene powder
surface modifying agent (Rx-Ry' type)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.01 torr | — |
Pressure |
Patent details
Patent
US 9,410,041Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1, the method of the present 5 invention generally comprises a surface cleaning step S 1 0 and a surface treatment step S 20 sequentially performed to …
FIG. 2 is a view showing the effect of physical adsorption for the surface modified graphene according to the present invention; [0018]
FIG. 3 shows an X-ray spectrum for the surface modified graphene powder, and it is clearly proved that the surface has a nitrogen containing functional group.
FIG. 4 illustrates the state,in which the grapnene powder dis ispersed in water, and
FIG. 5 is a view showing the original grapnene sheets dispersed in water. By comparing FIG s. 4 and 5, it is found that the surface of the surface modified …
FIG. 6 is an X-ray spectrum for the surface modified graphene powder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT [0022] The accompanying drawings are …
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 surface modifying graphene for performing a surface modifying process on graphene, comprising: a surface cleaning step for placing a graphene powder mixed with a surface modifying agent in a closed container in vacuum, heating the graphene powder up to a treatment temperature higher than a preset impurity desorption temperature for a period of time to desorb an impurity attached to the surface of the graphene powder by vacuum and heating such that the impurity is removed due to thermal decomposition into gas dispersing away; and a surface treatment step for adjusting the treatment temperature to a surface modifying adsorption temperature that is higher than the sublimation point of the surface modifying agent and lower than a thermal decomposition temperature of the surface modifying agent and injecting a gaseous surface modifying agent having a sublimation point such that the surface modifying agent is adsorbed on the surface of the graphene powder due to a physical adsorption effect of 7E-7E stacking and surface modified graphene is obtained to accomplish the method of surface modifying graphene.
The method as claimed in claim 1, wherein the closed container in vacuum has pressure lower than 1 0 2 torr, and the impurity desorption temperature is higher than 1000C.
The method as claimed in claim 1, wherein the surface modifying agent is specified by a chemical formula, Rx-Ry', R is selected from at least one group of benzene ring, pyridine and triazine, R' is selected from at least one group of amino, alkoxy, carbonyl, carboxyl, acetoxy, amido, alkyleneoxy, dimethylamino and alkyleneoxycarboxyl, 1 SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.436.2589.548.2625.svg 0.12 0.373 Chemistry Black and white 4 and SVG 14642170.05-03-2016.INUJAQZTPXXIFW1.CLM.1.29.683.2586.804.2634.svg 0.16 0.403 Chemistry Black and white 10.
The method as claimed in claim 1, wherein the surface modifying agent is selected from a group consisting of at least one of benzoic acid, o-phthalate acid and melamine.
canceled
Materials described outside the worked examples.
graphene powder
surface modifying agent (Rx-Ry' type)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 0.01 torr | — |
Pressure |
benzoic acid
C₆H₅COOH
o-phthalate acid
melamine
C₃H₆N₆
surface modified graphene
| — |
benzoic acid
C₆H₅COOH
o-phthalate acid
melamine
C₃H₆N₆
surface modified graphene
| — |
benzoic acid
C₆H₅COOH
o-phthalate acid
melamine
C₃H₆N₆
surface modified graphene
| — |
benzoic acid
C₆H₅COOH
o-phthalate acid
melamine
C₃H₆N₆
surface modified graphene
| — |