Patent
US 8,575,335METHOD OF PREPARING NITROGEN-DOPED GRAPHENE AND NITROGEN-DOPED GRAPHENE PREPARED THEREBY
In Yup JEON
US
Copyright © 2026 Matter42. All rights reserved.
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Claims Listing
2 NPG VL1:845321.1-POA-(V POOLE) 048341-00001 2. The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material is alkane having 1 to 13 preferably,5-te43 carbon atoms, alkene having 2 to 13 preferably-5 to 13 carbon atoms, alkyne having 2 to 13 preferably-5-to43 cabon atoms, cycloalkane having 3 to 13,-preferab-y-5te-1-3 c arb o n at oms, arene having 7 to 19 -prefeFably-1-1-te -1-9 carbon atoms or arylalkane having 7 to 19, preferably 1 to 19 carbon atoms, which have amino groups and the above functional groups, wherein the a l kane, the alkene, the alkyne, the cycloalkane, the arene and the arylalkane are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, a nd phenoxy a ndor the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material m ay-be js aminobenzoic acid, diaminobenzoic acid, aminobenzoamide or diaminobenzoamide, which are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, phenoxy and the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material may-be- is a compound selected from the group consisting of 3-aminobenzoic acid, 4-aminobenzoic acid, 3-(4-aminophenyl)benzoic acid, 3-(3-aminophenyl)benzoic acid, 4-(4-aminophenyl)benzoic acid, 4-(3-aminophenyl)benzoic acid, 5-aminoisophthalic acid, 3-(4-aminophenoxy)benzoic acid, 3-(3-aminophenoxy)benzoic acid, 4-(4- aminophenoxy)benzoic acid, 4-(3-aminophenoxy)benzoic acid, 3,4- diaminobenzoic acid, 3,5-diaminobenzoic acid, 3-aminobenzoamide and 4- aminobenzoamide. 3 NPGVL 1:845321.1 -POA-(VPOOLE) 048341-00001
The method of preparing nitrogen-doped grapheme according to claim 1, wherein the heat-treatment is conducted for 10 minutes to 12 hours.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the heat-treatment is conducted under the atmosphere of gas selected from the group consisting of methane, hydrogen, nitrogen, helium, neon and-argon or -and the combination thereof.
canceled
canceled
Materials described outside the worked examples.
nitrogen-doped graphene
graphite
organic material having one or more amino groups and one or more functional groups selected from carboxylic acid group, amide group, sulfonic acid group, carbonylchloride group and carbonylbromide group
alkane, alkene, alkyne, cycloalkane, arene or arylalkane having amino groups and functional groups
aminobenzoic acid
diaminobenzoic acid
aminobenzoamide
diaminobenzoamide
3-aminobenzoic acid
4-aminobenzoic acid
3-(4-aminophenyl)benzoic acid
3-(3-aminophenyl)benzoic acid
4-(4-aminophenyl)benzoic acid
4-(3-aminophenyl)benzoic acid
5-aminoisophthalic acid
3-(4-aminophenoxy)benzoic acid
3-(3-aminophenoxy)benzoic acid
4-(4-aminophenoxy)benzoic acid
4-(3-aminophenoxy)benzoic acid
3,4-diaminobenzoic acid
3,5-diaminobenzoic acid
3-aminobenzoamide
4-aminobenzoamide
polyphosphoric acid
phosphorus pentoxide
P₂O₅
edge-functionalized graphene (EFG)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen content in N-graphene | 0.01–5 wt% | nitrogen-doped graphene |
Duration | 30–1200 s | — |
Duration | 2–15 minutes | — |
Duration | 600–43200 s | — |
Duration | 1800–21600 s | — |
Temperature | 100–160 °C | — |
Duration | 12–120 hours | — |
Duration | 60–84 hours | — |
Pressure | 0.01–40 pa | — |
Temperature | 500–1100 °C | — |
Duration | 1–4 hours | — |
Voltage | 0.2–1 V | — |
Duration | ≤ 12 hours | — |
Duration | ≤ 30 seconds | — |
Duration | ≤ 10 minutes | — |
Duration | ≥ 20 minutes | — |
Duration | ≥ 12 hours | — |
Temperature | 300–1200 °C | — |
Related documents with shared materials, methods, properties, or citations.
GRAPHENE OXIDE REDUCED MATERIAL DISPERSED AT HIGH CONCENTRATION BY CATION-+529 INTERACTION AND METHOD FOR MANUFACTURING SAME
DYE-SENSITIZED SOLAR CELL INCLUDING POLYMER/GRAPHENE COMPOSITE GEL ELECTROLYTE AND METHODS OF PREPARING THE SAME
ELECTROCHEMICAL DEVICES COMPRISING GRAPHENE
METHOD FOR PREPARATION OF GRAPHENE USING SPONTANEOUS PROCESS
GRAPHENE-BASED COMPOSITE MATERIALS, METHOD OF MANUFACTURE AND APPLICATIONS THEREOF
ULTRA-LIGHTWEIGHT GRAPHENE-HBN NANOPARTICLE AEROGELS
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Claims Listing
2 NPG VL1:845321.1-POA-(V POOLE) 048341-00001 2. The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material is alkane having 1 to 13 preferably,5-te43 carbon atoms, alkene having 2 to 13 preferably-5 to 13 carbon atoms, alkyne having 2 to 13 preferably-5-to43 cabon atoms, cycloalkane having 3 to 13,-preferab-y-5te-1-3 c arb o n at oms, arene having 7 to 19 -prefeFably-1-1-te -1-9 carbon atoms or arylalkane having 7 to 19, preferably 1 to 19 carbon atoms, which have amino groups and the above functional groups, wherein the a l kane, the alkene, the alkyne, the cycloalkane, the arene and the arylalkane are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, a nd phenoxy a ndor the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material m ay-be js aminobenzoic acid, diaminobenzoic acid, aminobenzoamide or diaminobenzoamide, which are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, phenoxy and the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material may-be- is a compound selected from the group consisting of 3-aminobenzoic acid, 4-aminobenzoic acid, 3-(4-aminophenyl)benzoic acid, 3-(3-aminophenyl)benzoic acid, 4-(4-aminophenyl)benzoic acid, 4-(3-aminophenyl)benzoic acid, 5-aminoisophthalic acid, 3-(4-aminophenoxy)benzoic acid, 3-(3-aminophenoxy)benzoic acid, 4-(4- aminophenoxy)benzoic acid, 4-(3-aminophenoxy)benzoic acid, 3,4- diaminobenzoic acid, 3,5-diaminobenzoic acid, 3-aminobenzoamide and 4- aminobenzoamide. 3 NPGVL 1:845321.1 -POA-(VPOOLE) 048341-00001
The method of preparing nitrogen-doped grapheme according to claim 1, wherein the heat-treatment is conducted for 10 minutes to 12 hours.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the heat-treatment is conducted under the atmosphere of gas selected from the group consisting of methane, hydrogen, nitrogen, helium, neon and-argon or -and the combination thereof.
canceled
canceled
Materials described outside the worked examples.
nitrogen-doped graphene
graphite
organic material having one or more amino groups and one or more functional groups selected from carboxylic acid group, amide group, sulfonic acid group, carbonylchloride group and carbonylbromide group
alkane, alkene, alkyne, cycloalkane, arene or arylalkane having amino groups and functional groups
aminobenzoic acid
diaminobenzoic acid
aminobenzoamide
diaminobenzoamide
3-aminobenzoic acid
4-aminobenzoic acid
3-(4-aminophenyl)benzoic acid
3-(3-aminophenyl)benzoic acid
4-(4-aminophenyl)benzoic acid
4-(3-aminophenyl)benzoic acid
5-aminoisophthalic acid
3-(4-aminophenoxy)benzoic acid
3-(3-aminophenoxy)benzoic acid
4-(4-aminophenoxy)benzoic acid
4-(3-aminophenoxy)benzoic acid
3,4-diaminobenzoic acid
3,5-diaminobenzoic acid
3-aminobenzoamide
4-aminobenzoamide
polyphosphoric acid
phosphorus pentoxide
P₂O₅
edge-functionalized graphene (EFG)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen content in N-graphene | 0.01–5 wt% | nitrogen-doped graphene |
Duration | 30–1200 s | — |
Duration | 2–15 minutes | — |
Duration | 600–43200 s | — |
Duration | 1800–21600 s | — |
Temperature | 100–160 °C | — |
Duration | 12–120 hours | — |
Duration | 60–84 hours | — |
Pressure | 0.01–40 pa | — |
Temperature | 500–1100 °C | — |
Duration | 1–4 hours | — |
Voltage | 0.2–1 V | — |
Duration | ≤ 12 hours | — |
Duration | ≤ 30 seconds | — |
Duration | ≤ 10 minutes | — |
Duration | ≥ 20 minutes | — |
Duration | ≥ 12 hours | — |
Temperature | 300–1200 °C | — |
Related documents with shared materials, methods, properties, or citations.
GRAPHENE OXIDE REDUCED MATERIAL DISPERSED AT HIGH CONCENTRATION BY CATION-+529 INTERACTION AND METHOD FOR MANUFACTURING SAME
DYE-SENSITIZED SOLAR CELL INCLUDING POLYMER/GRAPHENE COMPOSITE GEL ELECTROLYTE AND METHODS OF PREPARING THE SAME
ELECTROCHEMICAL DEVICES COMPRISING GRAPHENE
METHOD FOR PREPARATION OF GRAPHENE USING SPONTANEOUS PROCESS
GRAPHENE-BASED COMPOSITE MATERIALS, METHOD OF MANUFACTURE AND APPLICATIONS THEREOF
ULTRA-LIGHTWEIGHT GRAPHENE-HBN NANOPARTICLE AEROGELS
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Claims Listing
2 NPG VL1:845321.1-POA-(V POOLE) 048341-00001 2. The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material is alkane having 1 to 13 preferably,5-te43 carbon atoms, alkene having 2 to 13 preferably-5 to 13 carbon atoms, alkyne having 2 to 13 preferably-5-to43 cabon atoms, cycloalkane having 3 to 13,-preferab-y-5te-1-3 c arb o n at oms, arene having 7 to 19 -prefeFably-1-1-te -1-9 carbon atoms or arylalkane having 7 to 19, preferably 1 to 19 carbon atoms, which have amino groups and the above functional groups, wherein the a l kane, the alkene, the alkyne, the cycloalkane, the arene and the arylalkane are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, a nd phenoxy a ndor the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material m ay-be js aminobenzoic acid, diaminobenzoic acid, aminobenzoamide or diaminobenzoamide, which are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, phenoxy and the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material may-be- is a compound selected from the group consisting of 3-aminobenzoic acid, 4-aminobenzoic acid, 3-(4-aminophenyl)benzoic acid, 3-(3-aminophenyl)benzoic acid, 4-(4-aminophenyl)benzoic acid, 4-(3-aminophenyl)benzoic acid, 5-aminoisophthalic acid, 3-(4-aminophenoxy)benzoic acid, 3-(3-aminophenoxy)benzoic acid, 4-(4- aminophenoxy)benzoic acid, 4-(3-aminophenoxy)benzoic acid, 3,4- diaminobenzoic acid, 3,5-diaminobenzoic acid, 3-aminobenzoamide and 4- aminobenzoamide. 3 NPGVL 1:845321.1 -POA-(VPOOLE) 048341-00001
The method of preparing nitrogen-doped grapheme according to claim 1, wherein the heat-treatment is conducted for 10 minutes to 12 hours.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the heat-treatment is conducted under the atmosphere of gas selected from the group consisting of methane, hydrogen, nitrogen, helium, neon and-argon or -and the combination thereof.
canceled
canceled
Materials described outside the worked examples.
nitrogen-doped graphene
graphite
organic material having one or more amino groups and one or more functional groups selected from carboxylic acid group, amide group, sulfonic acid group, carbonylchloride group and carbonylbromide group
alkane, alkene, alkyne, cycloalkane, arene or arylalkane having amino groups and functional groups
aminobenzoic acid
diaminobenzoic acid
aminobenzoamide
diaminobenzoamide
3-aminobenzoic acid
4-aminobenzoic acid
3-(4-aminophenyl)benzoic acid
3-(3-aminophenyl)benzoic acid
4-(4-aminophenyl)benzoic acid
4-(3-aminophenyl)benzoic acid
5-aminoisophthalic acid
3-(4-aminophenoxy)benzoic acid
3-(3-aminophenoxy)benzoic acid
4-(4-aminophenoxy)benzoic acid
4-(3-aminophenoxy)benzoic acid
3,4-diaminobenzoic acid
3,5-diaminobenzoic acid
3-aminobenzoamide
4-aminobenzoamide
polyphosphoric acid
phosphorus pentoxide
P₂O₅
edge-functionalized graphene (EFG)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen content in N-graphene | 0.01–5 wt% | nitrogen-doped graphene |
Duration | 30–1200 s | — |
Duration | 2–15 minutes | — |
Duration | 600–43200 s | — |
Duration | 1800–21600 s | — |
Temperature | 100–160 °C | — |
Duration | 12–120 hours | — |
Duration | 60–84 hours | — |
Pressure | 0.01–40 pa | — |
Temperature | 500–1100 °C | — |
Duration | 1–4 hours | — |
Voltage | 0.2–1 V | — |
Duration | ≤ 12 hours | — |
Duration | ≤ 30 seconds | — |
Duration | ≤ 10 minutes | — |
Duration | ≥ 20 minutes | — |
Duration | ≥ 12 hours | — |
Temperature | 300–1200 °C | — |
Related documents with shared materials, methods, properties, or citations.
GRAPHENE OXIDE REDUCED MATERIAL DISPERSED AT HIGH CONCENTRATION BY CATION-+529 INTERACTION AND METHOD FOR MANUFACTURING SAME
DYE-SENSITIZED SOLAR CELL INCLUDING POLYMER/GRAPHENE COMPOSITE GEL ELECTROLYTE AND METHODS OF PREPARING THE SAME
ELECTROCHEMICAL DEVICES COMPRISING GRAPHENE
METHOD FOR PREPARATION OF GRAPHENE USING SPONTANEOUS PROCESS
GRAPHENE-BASED COMPOSITE MATERIALS, METHOD OF MANUFACTURE AND APPLICATIONS THEREOF
ULTRA-LIGHTWEIGHT GRAPHENE-HBN NANOPARTICLE AEROGELS
Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
Claims Listing
2 NPG VL1:845321.1-POA-(V POOLE) 048341-00001 2. The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material is alkane having 1 to 13 preferably,5-te43 carbon atoms, alkene having 2 to 13 preferably-5 to 13 carbon atoms, alkyne having 2 to 13 preferably-5-to43 cabon atoms, cycloalkane having 3 to 13,-preferab-y-5te-1-3 c arb o n at oms, arene having 7 to 19 -prefeFably-1-1-te -1-9 carbon atoms or arylalkane having 7 to 19, preferably 1 to 19 carbon atoms, which have amino groups and the above functional groups, wherein the a l kane, the alkene, the alkyne, the cycloalkane, the arene and the arylalkane are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, a nd phenoxy a ndor the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material m ay-be js aminobenzoic acid, diaminobenzoic acid, aminobenzoamide or diaminobenzoamide, which are unsubstituted or substituted with a substitue n t selected from the group consisting of halo, nitro, amino, cyano, mercapto, hydroxy, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, formyl, alkylcarbonyl having 1 to 4 carbon atoms, phenyl, benzoyl, phenoxy and the combination thereof.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the organic material may-be- is a compound selected from the group consisting of 3-aminobenzoic acid, 4-aminobenzoic acid, 3-(4-aminophenyl)benzoic acid, 3-(3-aminophenyl)benzoic acid, 4-(4-aminophenyl)benzoic acid, 4-(3-aminophenyl)benzoic acid, 5-aminoisophthalic acid, 3-(4-aminophenoxy)benzoic acid, 3-(3-aminophenoxy)benzoic acid, 4-(4- aminophenoxy)benzoic acid, 4-(3-aminophenoxy)benzoic acid, 3,4- diaminobenzoic acid, 3,5-diaminobenzoic acid, 3-aminobenzoamide and 4- aminobenzoamide. 3 NPGVL 1:845321.1 -POA-(VPOOLE) 048341-00001
The method of preparing nitrogen-doped grapheme according to claim 1, wherein the heat-treatment is conducted for 10 minutes to 12 hours.
The method of preparing nitrogen-doped graphene according to claim 1, wherein the heat-treatment is conducted under the atmosphere of gas selected from the group consisting of methane, hydrogen, nitrogen, helium, neon and-argon or -and the combination thereof.
canceled
canceled
Materials described outside the worked examples.
nitrogen-doped graphene
graphite
organic material having one or more amino groups and one or more functional groups selected from carboxylic acid group, amide group, sulfonic acid group, carbonylchloride group and carbonylbromide group
alkane, alkene, alkyne, cycloalkane, arene or arylalkane having amino groups and functional groups
aminobenzoic acid
diaminobenzoic acid
aminobenzoamide
diaminobenzoamide
3-aminobenzoic acid
4-aminobenzoic acid
3-(4-aminophenyl)benzoic acid
3-(3-aminophenyl)benzoic acid
4-(4-aminophenyl)benzoic acid
4-(3-aminophenyl)benzoic acid
5-aminoisophthalic acid
3-(4-aminophenoxy)benzoic acid
3-(3-aminophenoxy)benzoic acid
4-(4-aminophenoxy)benzoic acid
4-(3-aminophenoxy)benzoic acid
3,4-diaminobenzoic acid
3,5-diaminobenzoic acid
3-aminobenzoamide
4-aminobenzoamide
polyphosphoric acid
phosphorus pentoxide
P₂O₅
edge-functionalized graphene (EFG)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 1 is a reaction formula schematically representing the preparation reaction of N- graphene according to the present invention, and a field emission …
FIG. 2 shows XPS spectra for graphite (P-graphite), organic material- doped graphene (EFG) and N-graphene. [33]
FIG. 3 is a field emission scanning electron microscope image obtained after a carbon-coated grid is dipped in a dispersion solution of organic material-grafted …
FIG. 4 shows Raman spectra of P-graphite and N-graphene, respectively. [35]
FIG. 5 shows an atomic force microscope image obtained after a dispersion solution of organic material-grafted graphene in tetrahydrofuran (THF) was …
FIG. 6 is a graph showing results of thermogravimetric analysis of P- graphite and organic material-grafted graphene (EFG). [37]
FIG. 7 is a graph showing a cyclic voltammogram of organic material- grafted graphene (EFG) film and N-graphene film formed on a glassy carbon (GC) electrode. …
FIG. 8 is a graph showing a result of measuring electrochemical stability of N-graphene film formed on a glassy carbon electrode.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
nitrogen content in N-graphene | 0.01–5 wt% | nitrogen-doped graphene |
Duration | 30–1200 s | — |
Duration | 2–15 minutes | — |
Duration | 600–43200 s | — |
Duration | 1800–21600 s | — |
Temperature | 100–160 °C | — |
Duration | 12–120 hours | — |
Duration | 60–84 hours | — |
Pressure | 0.01–40 pa | — |
Temperature | 500–1100 °C | — |
Duration | 1–4 hours | — |
Voltage | 0.2–1 V | — |
Duration | ≤ 12 hours | — |
Duration | ≤ 30 seconds | — |
Duration | ≤ 10 minutes | — |
Duration | ≥ 20 minutes | — |
Duration | ≥ 12 hours | — |
Temperature | 300–1200 °C | — |
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