Patent
US 8,986,515Production Process for Chemically Functionalized Nano Graphene Materials
Aruna Zhamu
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 8,986,515Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Conventional, most commonly used chemical processes for producing oxidized NGPs or GO platelets.
FIG. 2 A surfactant-assisted direct ultrasonication method for the production of pristine graphene, as disclosed earlier by the instant applicants.
FIG. 3 Schematic showing the reactions between pristine graphene and several azide compounds 25 (as illustrative examples) to form f un ctionalized NGPs.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
FIG. 6 (a) chemical f un ctionalization of NGPs with azide groups occurs to the NGP edges first, which improves the solubility or dispersibility of NGPs without …
FIG. 7 Grafting of different polymers (a)-(c) or attaching Pt nano particles (d) to various functionalized NGPs, as means to verify the presence of functional …
FIG. 8 Schematic of the three routes along which we can produce chemically functionalized NGPs. The process can begin with dispersing a pristine graphite …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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A combined produ c tion-functionalization process for producing a chemically functionalized nano graphene material from a p, halogenated graphite material and an azide or bi-radical compound, comprising: (A) Producing exfoliated halogenated graphite from said p, halogenated graphite material, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano- fiber, meso-ca r bon micro-bead, graphitized coke, and combinations thereof; (B) Dispersing said exfoliated halo gen ated graphite and said an azide or bi-radical compound in a liquid medium to form a suspension; and (C) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi-radical compound to produce said functionalized nano graphene material. currently amended
The process of claim 9 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 9 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 9 wherein said azide or bi-radical compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2- Azidoethoxy)-4-oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chl oroca r bonate, azidoca r bonate, dichloroca r bene, ca r bene, aryne, nitrene, (R-)- oxyca r bonyl nitrenes, where R = any one of the following groups, 2 SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.6.771.294.1829.397.svg 0.343 3.527 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.7.779.428.1755.485.svg 0.19 3.253 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.8.781.526.1561.797.svg 0.903 2.6 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.10.765.842.1690.1175.svg 1.11 3.083 Chemistry Black and white and combinations thereof.
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A combined production-functionalization process for producing a chemically functionalized nano graphene material from a pr, halogenated graphite material and an azide or bi-radical compound, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, ca r bon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; said process comprising: (A)Dispersing said pre intercalat°d, oxidized, or halogenated graphite material and the an azide or bi-radical compound in a liquid medium to form a suspension; (B) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or biradical compound to produce said functionalized nano graphene material.
The process of claim 14 wherein said azide or bi-radical compound is added to said liquid medium sequentially after said direct ultrasonication of said graphite material is allowed to proceed for a desired period of time.
The process of claim 14 wherein said graphite material is selected from the group consisting of natural graphite, artificial graphite, highly oriented pyrolytic graphite, car bon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro- bead, graphitized coke, and combinations thereof. 3
The process of claim 14 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 14 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 14 wherein said azide compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2-Azidoethoxy)-4- oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.16.769.1074.1923.1175.svg 0.337 3.847 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.17.777.1207.1752.1263.svg 0.187 3.25 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.18.778.1304.1559.1574.svg 0.9 2.603 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.20.763.1619.1689.1951.svg 1.107 3.087 Chemistry Black and white and combinations thereof.
The process of claim 14, further comprising a step of grafting a polymer chain to a functional group of said functionalized nano graphene material to produce a polymer-grafted nano graphene material. 21-31
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(Previously amended) A combined production-functionalization process for producing a chemically functionalized nano graphene material from a halogenated graphite material, comprising: (a) Producing exfoliated graphite from said halogenated graphite material, wherein said graphite material is selected from the group consisting of, carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; 4 (b) Dispersing said exfoliated graphite and an azide or bi-radical compound in a liquid medium to form a suspension; and (c) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi- radical compound to produce said f un ctionalized nano graphene material.
Materials described outside the worked examples.
halogenated graphite material
azide or bi-radical compound
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1550–1600 cm | — |
Duration | 1–2 hours |
Patent
Atlas literature
Patent
US 8,986,515Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Conventional, most commonly used chemical processes for producing oxidized NGPs or GO platelets.
FIG. 2 A surfactant-assisted direct ultrasonication method for the production of pristine graphene, as disclosed earlier by the instant applicants.
FIG. 3 Schematic showing the reactions between pristine graphene and several azide compounds 25 (as illustrative examples) to form f un ctionalized NGPs.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
FIG. 6 (a) chemical f un ctionalization of NGPs with azide groups occurs to the NGP edges first, which improves the solubility or dispersibility of NGPs without …
FIG. 7 Grafting of different polymers (a)-(c) or attaching Pt nano particles (d) to various functionalized NGPs, as means to verify the presence of functional …
FIG. 8 Schematic of the three routes along which we can produce chemically functionalized NGPs. The process can begin with dispersing a pristine graphite …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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A combined produ c tion-functionalization process for producing a chemically functionalized nano graphene material from a p, halogenated graphite material and an azide or bi-radical compound, comprising: (A) Producing exfoliated halogenated graphite from said p, halogenated graphite material, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano- fiber, meso-ca r bon micro-bead, graphitized coke, and combinations thereof; (B) Dispersing said exfoliated halo gen ated graphite and said an azide or bi-radical compound in a liquid medium to form a suspension; and (C) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi-radical compound to produce said functionalized nano graphene material. currently amended
The process of claim 9 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 9 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 9 wherein said azide or bi-radical compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2- Azidoethoxy)-4-oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chl oroca r bonate, azidoca r bonate, dichloroca r bene, ca r bene, aryne, nitrene, (R-)- oxyca r bonyl nitrenes, where R = any one of the following groups, 2 SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.6.771.294.1829.397.svg 0.343 3.527 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.7.779.428.1755.485.svg 0.19 3.253 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.8.781.526.1561.797.svg 0.903 2.6 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.10.765.842.1690.1175.svg 1.11 3.083 Chemistry Black and white and combinations thereof.
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A combined production-functionalization process for producing a chemically functionalized nano graphene material from a pr, halogenated graphite material and an azide or bi-radical compound, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, ca r bon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; said process comprising: (A)Dispersing said pre intercalat°d, oxidized, or halogenated graphite material and the an azide or bi-radical compound in a liquid medium to form a suspension; (B) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or biradical compound to produce said functionalized nano graphene material.
The process of claim 14 wherein said azide or bi-radical compound is added to said liquid medium sequentially after said direct ultrasonication of said graphite material is allowed to proceed for a desired period of time.
The process of claim 14 wherein said graphite material is selected from the group consisting of natural graphite, artificial graphite, highly oriented pyrolytic graphite, car bon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro- bead, graphitized coke, and combinations thereof. 3
The process of claim 14 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 14 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 14 wherein said azide compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2-Azidoethoxy)-4- oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.16.769.1074.1923.1175.svg 0.337 3.847 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.17.777.1207.1752.1263.svg 0.187 3.25 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.18.778.1304.1559.1574.svg 0.9 2.603 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.20.763.1619.1689.1951.svg 1.107 3.087 Chemistry Black and white and combinations thereof.
The process of claim 14, further comprising a step of grafting a polymer chain to a functional group of said functionalized nano graphene material to produce a polymer-grafted nano graphene material. 21-31
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(Previously amended) A combined production-functionalization process for producing a chemically functionalized nano graphene material from a halogenated graphite material, comprising: (a) Producing exfoliated graphite from said halogenated graphite material, wherein said graphite material is selected from the group consisting of, carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; 4 (b) Dispersing said exfoliated graphite and an azide or bi-radical compound in a liquid medium to form a suspension; and (c) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi- radical compound to produce said f un ctionalized nano graphene material.
Materials described outside the worked examples.
halogenated graphite material
azide or bi-radical compound
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1550–1600 cm | — |
Duration | 1–2 hours |
Patent
Atlas literature
Patent
US 8,986,515Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Conventional, most commonly used chemical processes for producing oxidized NGPs or GO platelets.
FIG. 2 A surfactant-assisted direct ultrasonication method for the production of pristine graphene, as disclosed earlier by the instant applicants.
FIG. 3 Schematic showing the reactions between pristine graphene and several azide compounds 25 (as illustrative examples) to form f un ctionalized NGPs.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
FIG. 6 (a) chemical f un ctionalization of NGPs with azide groups occurs to the NGP edges first, which improves the solubility or dispersibility of NGPs without …
FIG. 7 Grafting of different polymers (a)-(c) or attaching Pt nano particles (d) to various functionalized NGPs, as means to verify the presence of functional …
FIG. 8 Schematic of the three routes along which we can produce chemically functionalized NGPs. The process can begin with dispersing a pristine graphite …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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A combined produ c tion-functionalization process for producing a chemically functionalized nano graphene material from a p, halogenated graphite material and an azide or bi-radical compound, comprising: (A) Producing exfoliated halogenated graphite from said p, halogenated graphite material, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano- fiber, meso-ca r bon micro-bead, graphitized coke, and combinations thereof; (B) Dispersing said exfoliated halo gen ated graphite and said an azide or bi-radical compound in a liquid medium to form a suspension; and (C) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi-radical compound to produce said functionalized nano graphene material. currently amended
The process of claim 9 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 9 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 9 wherein said azide or bi-radical compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2- Azidoethoxy)-4-oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chl oroca r bonate, azidoca r bonate, dichloroca r bene, ca r bene, aryne, nitrene, (R-)- oxyca r bonyl nitrenes, where R = any one of the following groups, 2 SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.6.771.294.1829.397.svg 0.343 3.527 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.7.779.428.1755.485.svg 0.19 3.253 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.8.781.526.1561.797.svg 0.903 2.6 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.10.765.842.1690.1175.svg 1.11 3.083 Chemistry Black and white and combinations thereof.
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A combined production-functionalization process for producing a chemically functionalized nano graphene material from a pr, halogenated graphite material and an azide or bi-radical compound, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, ca r bon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; said process comprising: (A)Dispersing said pre intercalat°d, oxidized, or halogenated graphite material and the an azide or bi-radical compound in a liquid medium to form a suspension; (B) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or biradical compound to produce said functionalized nano graphene material.
The process of claim 14 wherein said azide or bi-radical compound is added to said liquid medium sequentially after said direct ultrasonication of said graphite material is allowed to proceed for a desired period of time.
The process of claim 14 wherein said graphite material is selected from the group consisting of natural graphite, artificial graphite, highly oriented pyrolytic graphite, car bon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro- bead, graphitized coke, and combinations thereof. 3
The process of claim 14 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 14 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 14 wherein said azide compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2-Azidoethoxy)-4- oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.16.769.1074.1923.1175.svg 0.337 3.847 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.17.777.1207.1752.1263.svg 0.187 3.25 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.18.778.1304.1559.1574.svg 0.9 2.603 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.20.763.1619.1689.1951.svg 1.107 3.087 Chemistry Black and white and combinations thereof.
The process of claim 14, further comprising a step of grafting a polymer chain to a functional group of said functionalized nano graphene material to produce a polymer-grafted nano graphene material. 21-31
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(Previously amended) A combined production-functionalization process for producing a chemically functionalized nano graphene material from a halogenated graphite material, comprising: (a) Producing exfoliated graphite from said halogenated graphite material, wherein said graphite material is selected from the group consisting of, carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; 4 (b) Dispersing said exfoliated graphite and an azide or bi-radical compound in a liquid medium to form a suspension; and (c) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi- radical compound to produce said f un ctionalized nano graphene material.
Materials described outside the worked examples.
halogenated graphite material
azide or bi-radical compound
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1550–1600 cm | — |
Duration | 1–2 hours |
Patent
Atlas literature
Patent
US 8,986,515Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 Conventional, most commonly used chemical processes for producing oxidized NGPs or GO platelets.
FIG. 2 A surfactant-assisted direct ultrasonication method for the production of pristine graphene, as disclosed earlier by the instant applicants.
FIG. 3 Schematic showing the reactions between pristine graphene and several azide compounds 25 (as illustrative examples) to form f un ctionalized NGPs.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
FIG. 6 (a) chemical f un ctionalization of NGPs with azide groups occurs to the NGP edges first, which improves the solubility or dispersibility of NGPs without …
FIG. 7 Grafting of different polymers (a)-(c) or attaching Pt nano particles (d) to various functionalized NGPs, as means to verify the presence of functional …
FIG. 8 Schematic of the three routes along which we can produce chemically functionalized NGPs. The process can begin with dispersing a pristine graphite …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
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A combined produ c tion-functionalization process for producing a chemically functionalized nano graphene material from a p, halogenated graphite material and an azide or bi-radical compound, comprising: (A) Producing exfoliated halogenated graphite from said p, halogenated graphite material, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano- fiber, meso-ca r bon micro-bead, graphitized coke, and combinations thereof; (B) Dispersing said exfoliated halo gen ated graphite and said an azide or bi-radical compound in a liquid medium to form a suspension; and (C) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi-radical compound to produce said functionalized nano graphene material. currently amended
The process of claim 9 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 9 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 9 wherein said azide or bi-radical compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2- Azidoethoxy)-4-oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chl oroca r bonate, azidoca r bonate, dichloroca r bene, ca r bene, aryne, nitrene, (R-)- oxyca r bonyl nitrenes, where R = any one of the following groups, 2 SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.6.771.294.1829.397.svg 0.343 3.527 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.7.779.428.1755.485.svg 0.19 3.253 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.8.781.526.1561.797.svg 0.903 2.6 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069557.10.765.842.1690.1175.svg 1.11 3.083 Chemistry Black and white and combinations thereof.
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A combined production-functionalization process for producing a chemically functionalized nano graphene material from a pr, halogenated graphite material and an azide or bi-radical compound, wherein said graphite material is selected from the group consisting of carbon fiber, graphite fiber, ca r bon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; said process comprising: (A)Dispersing said pre intercalat°d, oxidized, or halogenated graphite material and the an azide or bi-radical compound in a liquid medium to form a suspension; (B) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or biradical compound to produce said functionalized nano graphene material.
The process of claim 14 wherein said azide or bi-radical compound is added to said liquid medium sequentially after said direct ultrasonication of said graphite material is allowed to proceed for a desired period of time.
The process of claim 14 wherein said graphite material is selected from the group consisting of natural graphite, artificial graphite, highly oriented pyrolytic graphite, car bon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro- bead, graphitized coke, and combinations thereof. 3
The process of claim 14 wherein said chemical reaction occurs only to an edge or edges of said nano graphene platelets.
The process of claim 14 wherein said chemical reaction occurs to an edge and at least one primary surface of said nano graphene platelets.
The process of claim 14 wherein said azide compound is selected from the group consisting of 2-Azidoethanol, 3-Azidopropan- 1 -amine, 4-(2-Azidoethoxy)-4- oxobutanoic acid, 2-Azidoethyl-2-bromo-2-methylpropanoate, chlorocarbonate, azidocarbonate, dichlorocarbene, carbene, aryne, nitrene, (R-)-oxycarbonyl nitrenes, where R = any one of the following groups, SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.16.769.1074.1923.1175.svg 0.337 3.847 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.17.777.1207.1752.1263.svg 0.187 3.25 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.18.778.1304.1559.1574.svg 0.9 2.603 Chemistry Black and white SVG 13573259.07-21-2014.HY₈KGLOXPXXIFW4.CLM23069558.20.763.1619.1689.1951.svg 1.107 3.087 Chemistry Black and white and combinations thereof.
The process of claim 14, further comprising a step of grafting a polymer chain to a functional group of said functionalized nano graphene material to produce a polymer-grafted nano graphene material. 21-31
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(Previously amended) A combined production-functionalization process for producing a chemically functionalized nano graphene material from a halogenated graphite material, comprising: (a) Producing exfoliated graphite from said halogenated graphite material, wherein said graphite material is selected from the group consisting of, carbon fiber, graphite fiber, carbon nano-fiber, graphitic nano-fiber, meso-carbon micro-bead, graphitized coke, and combinations thereof; 4 (b) Dispersing said exfoliated graphite and an azide or bi-radical compound in a liquid medium to form a suspension; and (c) Subjecting said suspension to ultrasonication with ultrasonic waves of a desired intensity for a length of time sufficient to produce nano graphene platelets and to enable a chemical reaction to occur between said nano graphene platelets and said azide or bi- radical compound to produce said f un ctionalized nano graphene material.
Materials described outside the worked examples.
halogenated graphite material
azide or bi-radical compound
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 100 *C.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Thickness | 1550–1600 cm | — |
Duration | 1–2 hours |
chemically functionalized nano graphene platelets
polymer-grafted nano graphene material
2-Azidoethanol
3-Azidopropan-1-amine
4-(2-Azidoethoxy)-4-oxobutanoic acid
2-Azidoethyl-2-bromo-2-methylpropanoate
exfoliated graphite
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
| — |
Duration | 20–120 minutes | — |
Duration | 4–6 hours | — |
Duration | 10–120 minutes | — |
Duration | 30–60 minutes | — |
Duration | ≥ 1.5 hours | — |
chemically functionalized nano graphene platelets
polymer-grafted nano graphene material
2-Azidoethanol
3-Azidopropan-1-amine
4-(2-Azidoethoxy)-4-oxobutanoic acid
2-Azidoethyl-2-bromo-2-methylpropanoate
exfoliated graphite
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
| — |
Duration | 20–120 minutes | — |
Duration | 4–6 hours | — |
Duration | 10–120 minutes | — |
Duration | 30–60 minutes | — |
Duration | ≥ 1.5 hours | — |
chemically functionalized nano graphene platelets
polymer-grafted nano graphene material
2-Azidoethanol
3-Azidopropan-1-amine
4-(2-Azidoethoxy)-4-oxobutanoic acid
2-Azidoethyl-2-bromo-2-methylpropanoate
exfoliated graphite
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
| — |
Duration | 20–120 minutes | — |
Duration | 4–6 hours | — |
Duration | 10–120 minutes | — |
Duration | 30–60 minutes | — |
Duration | ≥ 1.5 hours | — |
chemically functionalized nano graphene platelets
polymer-grafted nano graphene material
2-Azidoethanol
3-Azidopropan-1-amine
4-(2-Azidoethoxy)-4-oxobutanoic acid
2-Azidoethyl-2-bromo-2-methylpropanoate
exfoliated graphite
FIG. 5 Electrical conductivity data for the thin films made from pristine NGPs (p-NGPs), GO, and CNTs after various periods of amino azide reactions at 160 *C. …
| — |
Duration | 20–120 minutes | — |
Duration | 4–6 hours | — |
Duration | 10–120 minutes | — |
Duration | 30–60 minutes | — |
Duration | ≥ 1.5 hours | — |