Patent
US 9,169,568METHOD FOR FABRICATING GRAPHENE
YONG-CHIEN LING
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 9,169,568Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 ~ 2C. BRIEF DESCRIPTION OF THE DRAWINGS [0029] FIG 1 is flow diagram showing a method according to a preferred embodiment of the present invention for …
FIG. 2A. Fig. 1 is flow diagram showing a method according to a prefe rr ed embodiment of the present invention for fabricating graphene, and FIG 2A is diagram …
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 method for fabricating graphene at least comprising the following steps: inserting a first electrode and a second electrode into an electrolyte without contacting, wherein the first electrode is graphite multilayer material and the electrolyte comprises at least an ionic liquid; producing a potential difference between the first electrode and the second electrode; and permitting the ionic liquid enter into each layer of the first electrode to form a plurality of graphene, wherein the electrolyte further comprises an auxiliary liquid and the auxiliary liquid comprises a first solvent and a second solvent, wherein the first solvent can be selected from a group consisting of hydrobromic acid, ammonium hydroxide, aniline, pyrrole, thiofuran, ethyne, dimethyl sulfoxide, ethanol, phenylene vinylene and the combination thereof, and the second solvent can be selected from a group consisting of ester, ether, ketone and the combination thereof.
The method according to claim 1 further comprising the following step: SVG 13886501.07-07-2015.IBTIFX₁LPXXIFW3.CLM.1.svg 0.15 1.5 Black and white
The method according to claim 1, wherein the ionic liquid comprises a cation and an anion, and the cation can be selected from a group consisting of ammonium, imidazolium, oxazolium. piperidinium, pyrazinium, pyrazolium, pyridazinium, pyrimidinium, pyrrolidinium, pyrrolinium, thiazolium, triazolium and guanidinium ionic liquid, and the anion can be selected from a group consisting of halogen, sulfate, phosphate, amide, imide, borate, sulfonate, antimonite, decanoate and cobalt tetracarbonyl anion.
The method according to claim 1, wherein the second electrode is a graphite electrode, a platinum electrode or a stainless steel electrode.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant cu rr ent between the first electrode and the second electrode, and the constant cu rr ent is applied for 0.5 ~ 24 hours with a value between 10 mA/g ~ 20 A/g.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant voltage between the first electrode and the second electrode, and the constant voltage is applied for 0.5 ~ 24 hours with a value between 0.5 V ~ 20 V.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a potential scanning between the first electrode and the second electrode, and the conditions of the potential scanning is applied for 0.5 ~ 24 hours with a scanning range between -0.2V ~ 20V, or applied with a scanning frequency of 10 -1 0000 times.
The method according to claim 1, wherein the concentration of the ionic liquid has a value between 0.0001%-100%.
The method according to claim 1, wherein the first electrode and the second electrode are placed with a separation of 1 nm ~ 20 cm.
The method according to claim 1, wherein the first electrode and the second electrode are placed with an included angle of 0 ~ 180 degree. Attorney Docket No. 17010-045 4
canceled
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent is carbonate, and selected from a group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, ethyl methyl carbonate, ethylene carbonate, propylene carbonate, butylenes carbonate and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent can be selected from a group consisting of methyl acetate, ethyl acetate, n-propyl acetate, dimethyl acetate, methyl propanoate, ethyl propanoate, y-butyrolactone, decalactone, pentanolactone, mevalonic acid lactone, caprolactone and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent Attorney Docket No. 17010-045 3 Application No. 13/886,50 1 can be selected from a group consisting of dibutyl ether, tetraethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dimethoxyethane, 2-methyl tetra-nitro dibenzofuran, tetrahydrofuran and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent can be selected from a group consisting of cyclohexanone, poly(methyl vinyl ketone) and the combination thereof.
Materials described outside the worked examples.
graphene
ionic liquid
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen atom percentage in nitrogen-doped graphene | 0.01–99 % | nitrogen-doped graphene |
Thickness | 0.3–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,169,568Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 ~ 2C. BRIEF DESCRIPTION OF THE DRAWINGS [0029] FIG 1 is flow diagram showing a method according to a preferred embodiment of the present invention for …
FIG. 2A. Fig. 1 is flow diagram showing a method according to a prefe rr ed embodiment of the present invention for fabricating graphene, and FIG 2A is diagram …
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 method for fabricating graphene at least comprising the following steps: inserting a first electrode and a second electrode into an electrolyte without contacting, wherein the first electrode is graphite multilayer material and the electrolyte comprises at least an ionic liquid; producing a potential difference between the first electrode and the second electrode; and permitting the ionic liquid enter into each layer of the first electrode to form a plurality of graphene, wherein the electrolyte further comprises an auxiliary liquid and the auxiliary liquid comprises a first solvent and a second solvent, wherein the first solvent can be selected from a group consisting of hydrobromic acid, ammonium hydroxide, aniline, pyrrole, thiofuran, ethyne, dimethyl sulfoxide, ethanol, phenylene vinylene and the combination thereof, and the second solvent can be selected from a group consisting of ester, ether, ketone and the combination thereof.
The method according to claim 1 further comprising the following step: SVG 13886501.07-07-2015.IBTIFX₁LPXXIFW3.CLM.1.svg 0.15 1.5 Black and white
The method according to claim 1, wherein the ionic liquid comprises a cation and an anion, and the cation can be selected from a group consisting of ammonium, imidazolium, oxazolium. piperidinium, pyrazinium, pyrazolium, pyridazinium, pyrimidinium, pyrrolidinium, pyrrolinium, thiazolium, triazolium and guanidinium ionic liquid, and the anion can be selected from a group consisting of halogen, sulfate, phosphate, amide, imide, borate, sulfonate, antimonite, decanoate and cobalt tetracarbonyl anion.
The method according to claim 1, wherein the second electrode is a graphite electrode, a platinum electrode or a stainless steel electrode.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant cu rr ent between the first electrode and the second electrode, and the constant cu rr ent is applied for 0.5 ~ 24 hours with a value between 10 mA/g ~ 20 A/g.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant voltage between the first electrode and the second electrode, and the constant voltage is applied for 0.5 ~ 24 hours with a value between 0.5 V ~ 20 V.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a potential scanning between the first electrode and the second electrode, and the conditions of the potential scanning is applied for 0.5 ~ 24 hours with a scanning range between -0.2V ~ 20V, or applied with a scanning frequency of 10 -1 0000 times.
The method according to claim 1, wherein the concentration of the ionic liquid has a value between 0.0001%-100%.
The method according to claim 1, wherein the first electrode and the second electrode are placed with a separation of 1 nm ~ 20 cm.
The method according to claim 1, wherein the first electrode and the second electrode are placed with an included angle of 0 ~ 180 degree. Attorney Docket No. 17010-045 4
canceled
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent is carbonate, and selected from a group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, ethyl methyl carbonate, ethylene carbonate, propylene carbonate, butylenes carbonate and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent can be selected from a group consisting of methyl acetate, ethyl acetate, n-propyl acetate, dimethyl acetate, methyl propanoate, ethyl propanoate, y-butyrolactone, decalactone, pentanolactone, mevalonic acid lactone, caprolactone and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent Attorney Docket No. 17010-045 3 Application No. 13/886,50 1 can be selected from a group consisting of dibutyl ether, tetraethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dimethoxyethane, 2-methyl tetra-nitro dibenzofuran, tetrahydrofuran and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent can be selected from a group consisting of cyclohexanone, poly(methyl vinyl ketone) and the combination thereof.
Materials described outside the worked examples.
graphene
ionic liquid
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen atom percentage in nitrogen-doped graphene | 0.01–99 % | nitrogen-doped graphene |
Thickness | 0.3–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,169,568Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 ~ 2C. BRIEF DESCRIPTION OF THE DRAWINGS [0029] FIG 1 is flow diagram showing a method according to a preferred embodiment of the present invention for …
FIG. 2A. Fig. 1 is flow diagram showing a method according to a prefe rr ed embodiment of the present invention for fabricating graphene, and FIG 2A is diagram …
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 method for fabricating graphene at least comprising the following steps: inserting a first electrode and a second electrode into an electrolyte without contacting, wherein the first electrode is graphite multilayer material and the electrolyte comprises at least an ionic liquid; producing a potential difference between the first electrode and the second electrode; and permitting the ionic liquid enter into each layer of the first electrode to form a plurality of graphene, wherein the electrolyte further comprises an auxiliary liquid and the auxiliary liquid comprises a first solvent and a second solvent, wherein the first solvent can be selected from a group consisting of hydrobromic acid, ammonium hydroxide, aniline, pyrrole, thiofuran, ethyne, dimethyl sulfoxide, ethanol, phenylene vinylene and the combination thereof, and the second solvent can be selected from a group consisting of ester, ether, ketone and the combination thereof.
The method according to claim 1 further comprising the following step: SVG 13886501.07-07-2015.IBTIFX₁LPXXIFW3.CLM.1.svg 0.15 1.5 Black and white
The method according to claim 1, wherein the ionic liquid comprises a cation and an anion, and the cation can be selected from a group consisting of ammonium, imidazolium, oxazolium. piperidinium, pyrazinium, pyrazolium, pyridazinium, pyrimidinium, pyrrolidinium, pyrrolinium, thiazolium, triazolium and guanidinium ionic liquid, and the anion can be selected from a group consisting of halogen, sulfate, phosphate, amide, imide, borate, sulfonate, antimonite, decanoate and cobalt tetracarbonyl anion.
The method according to claim 1, wherein the second electrode is a graphite electrode, a platinum electrode or a stainless steel electrode.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant cu rr ent between the first electrode and the second electrode, and the constant cu rr ent is applied for 0.5 ~ 24 hours with a value between 10 mA/g ~ 20 A/g.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant voltage between the first electrode and the second electrode, and the constant voltage is applied for 0.5 ~ 24 hours with a value between 0.5 V ~ 20 V.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a potential scanning between the first electrode and the second electrode, and the conditions of the potential scanning is applied for 0.5 ~ 24 hours with a scanning range between -0.2V ~ 20V, or applied with a scanning frequency of 10 -1 0000 times.
The method according to claim 1, wherein the concentration of the ionic liquid has a value between 0.0001%-100%.
The method according to claim 1, wherein the first electrode and the second electrode are placed with a separation of 1 nm ~ 20 cm.
The method according to claim 1, wherein the first electrode and the second electrode are placed with an included angle of 0 ~ 180 degree. Attorney Docket No. 17010-045 4
canceled
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent is carbonate, and selected from a group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, ethyl methyl carbonate, ethylene carbonate, propylene carbonate, butylenes carbonate and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent can be selected from a group consisting of methyl acetate, ethyl acetate, n-propyl acetate, dimethyl acetate, methyl propanoate, ethyl propanoate, y-butyrolactone, decalactone, pentanolactone, mevalonic acid lactone, caprolactone and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent Attorney Docket No. 17010-045 3 Application No. 13/886,50 1 can be selected from a group consisting of dibutyl ether, tetraethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dimethoxyethane, 2-methyl tetra-nitro dibenzofuran, tetrahydrofuran and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent can be selected from a group consisting of cyclohexanone, poly(methyl vinyl ketone) and the combination thereof.
Materials described outside the worked examples.
graphene
ionic liquid
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen atom percentage in nitrogen-doped graphene | 0.01–99 % | nitrogen-doped graphene |
Thickness | 0.3–1000 nm |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,169,568Patent drawings and their descriptions. Click a drawing to enlarge it.
FIGS. 1 ~ 2C. BRIEF DESCRIPTION OF THE DRAWINGS [0029] FIG 1 is flow diagram showing a method according to a preferred embodiment of the present invention for …
FIG. 2A. Fig. 1 is flow diagram showing a method according to a prefe rr ed embodiment of the present invention for fabricating graphene, and FIG 2A is diagram …
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 method for fabricating graphene at least comprising the following steps: inserting a first electrode and a second electrode into an electrolyte without contacting, wherein the first electrode is graphite multilayer material and the electrolyte comprises at least an ionic liquid; producing a potential difference between the first electrode and the second electrode; and permitting the ionic liquid enter into each layer of the first electrode to form a plurality of graphene, wherein the electrolyte further comprises an auxiliary liquid and the auxiliary liquid comprises a first solvent and a second solvent, wherein the first solvent can be selected from a group consisting of hydrobromic acid, ammonium hydroxide, aniline, pyrrole, thiofuran, ethyne, dimethyl sulfoxide, ethanol, phenylene vinylene and the combination thereof, and the second solvent can be selected from a group consisting of ester, ether, ketone and the combination thereof.
The method according to claim 1 further comprising the following step: SVG 13886501.07-07-2015.IBTIFX₁LPXXIFW3.CLM.1.svg 0.15 1.5 Black and white
The method according to claim 1, wherein the ionic liquid comprises a cation and an anion, and the cation can be selected from a group consisting of ammonium, imidazolium, oxazolium. piperidinium, pyrazinium, pyrazolium, pyridazinium, pyrimidinium, pyrrolidinium, pyrrolinium, thiazolium, triazolium and guanidinium ionic liquid, and the anion can be selected from a group consisting of halogen, sulfate, phosphate, amide, imide, borate, sulfonate, antimonite, decanoate and cobalt tetracarbonyl anion.
The method according to claim 1, wherein the second electrode is a graphite electrode, a platinum electrode or a stainless steel electrode.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant cu rr ent between the first electrode and the second electrode, and the constant cu rr ent is applied for 0.5 ~ 24 hours with a value between 10 mA/g ~ 20 A/g.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a constant voltage between the first electrode and the second electrode, and the constant voltage is applied for 0.5 ~ 24 hours with a value between 0.5 V ~ 20 V.
The method according to claim 1, wherein the step of producing a potential difference between the first electrode and the second electrode is performed by applying a potential scanning between the first electrode and the second electrode, and the conditions of the potential scanning is applied for 0.5 ~ 24 hours with a scanning range between -0.2V ~ 20V, or applied with a scanning frequency of 10 -1 0000 times.
The method according to claim 1, wherein the concentration of the ionic liquid has a value between 0.0001%-100%.
The method according to claim 1, wherein the first electrode and the second electrode are placed with a separation of 1 nm ~ 20 cm.
The method according to claim 1, wherein the first electrode and the second electrode are placed with an included angle of 0 ~ 180 degree. Attorney Docket No. 17010-045 4
canceled
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent is carbonate, and selected from a group consisting of dimethyl carbonate, diethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, ethyl methyl carbonate, ethylene carbonate, propylene carbonate, butylenes carbonate and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]]1, wherein the second solvent can be selected from a group consisting of methyl acetate, ethyl acetate, n-propyl acetate, dimethyl acetate, methyl propanoate, ethyl propanoate, y-butyrolactone, decalactone, pentanolactone, mevalonic acid lactone, caprolactone and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent Attorney Docket No. 17010-045 3 Application No. 13/886,50 1 can be selected from a group consisting of dibutyl ether, tetraethylene glycol dimethyl ether, diethylene glycol dimethyl ether, dimethoxyethane, 2-methyl tetra-nitro dibenzofuran, tetrahydrofuran and the combination thereof.
(Cu rr ently amended) The method according to claim [[9]] 1, wherein the second solvent can be selected from a group consisting of cyclohexanone, poly(methyl vinyl ketone) and the combination thereof.
Materials described outside the worked examples.
graphene
ionic liquid
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen atom percentage in nitrogen-doped graphene | 0.01–99 % | nitrogen-doped graphene |
Thickness | 0.3–1000 nm |
Related documents with shared materials, methods, properties, or citations.
graphite multilayer material
nitrogen-doped graphene
carbonate second solvent
ester second solvent (acetate/lactone group)
ether second solvent
ketone second solvent
| — |
graphite multilayer material
nitrogen-doped graphene
carbonate second solvent
ester second solvent (acetate/lactone group)
ether second solvent
ketone second solvent
| — |
graphite multilayer material
nitrogen-doped graphene
carbonate second solvent
ester second solvent (acetate/lactone group)
ether second solvent
ketone second solvent
| — |
graphite multilayer material
nitrogen-doped graphene
carbonate second solvent
ester second solvent (acetate/lactone group)
ether second solvent
ketone second solvent
| — |