Patent
US 9,928,967THREE-DIMENSIONAL COMPOSITES OF NICKEL COBALT OXIDE/GRAPHENE ON NICKEL FOAM FOR SUPERCAPACITOR ELECTRODES, AND PREPARATION METHOD THEREOF
Jae-Jin SHIM
US
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Patent
Atlas literature
Patent
US 9,928,967Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
-5. Canceled
Canceled
A method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam comprising the steps of: (a) forming a graphene oxide thin film by immersing nickel foam in a graphene oxide solution and electrodepositing simultaneously; (b) forming nickel cobalt hydroxide nanoparticles on the top of graphene oxide layer by adding the nickel foam covered with the graphene oxide thin film in an electrolyte solution mixed with bimetallic nickel and cobalt hydroxide and electrodepositing simultaneously; and (c) calcining the nickel foam covered with the graphene oxide thin film and nickel cobalt hydroxide nanoparticles. Original
The method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam according to claim 6, wherein the electrodeposition step (a) is performed at 0.1 to 1 V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the nitrate at a molar ratio of 1:3 to 3:1. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the of 200 to 350 ° C for 1 to 5 h. Original
-13. Canceled
Canceled composite of nickel cobalt oxide/graphene on electrodeposition step (b) is performed at -1.5 to -0.5 composite of nickel cobalt oxide/graphene on electrolyte comprises nickel nitrate and cobalt composite of nickel cobalt oxide/graphene on calcination step (c) is performed at a temperature
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials3 process steps
Synthesis and performance analysis of three-dimensional NiCo₂O₄/graphene/Ni foam (NiCo₂O₄/G/NF) composite. GO was prepared by improved Hummers method. Nickel foam (1cm x 3cm) was cleaned with 6M HCl, then graphene was electrodeposited from GO suspension (1.5 g/L, 0.5 V, 10 min). Bimetallic (Ni,Co) hydroxide was electrodeposited from aqueous 6 mM Co(NO₃)2·6H₂O and 3 mM Ni(NO₃)2·6H₂O at -1.0 V for 10 min. The sample was then calcined at 300°C for 2 h (ramp 1°C/min) to convert hydroxide to NiCo₂O4. ~15 mg of graphene sheets and NiCo₂O₄ deposited per 1 cm x 1 cm of Ni foam; graphene ~10%. Electrode exhibited specific capacitance of 2,260 F/g at 1 A/g and 1,950 F/g at high current density; 92.8% capacity retention after 10,000 cycles at 3 A/g.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional nickel cobalt oxide/graphene/nickel foam supercapacitor electrode
Materials described outside the worked examples.
nickel cobalt hydroxide nanoparticles
nickel cobalt oxide nanoparticles
NixCoyOz
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Capacitance | 2260 F/g | — |
Specific Capacitance |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,928,967Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
-5. Canceled
Canceled
A method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam comprising the steps of: (a) forming a graphene oxide thin film by immersing nickel foam in a graphene oxide solution and electrodepositing simultaneously; (b) forming nickel cobalt hydroxide nanoparticles on the top of graphene oxide layer by adding the nickel foam covered with the graphene oxide thin film in an electrolyte solution mixed with bimetallic nickel and cobalt hydroxide and electrodepositing simultaneously; and (c) calcining the nickel foam covered with the graphene oxide thin film and nickel cobalt hydroxide nanoparticles. Original
The method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam according to claim 6, wherein the electrodeposition step (a) is performed at 0.1 to 1 V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the nitrate at a molar ratio of 1:3 to 3:1. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the of 200 to 350 ° C for 1 to 5 h. Original
-13. Canceled
Canceled composite of nickel cobalt oxide/graphene on electrodeposition step (b) is performed at -1.5 to -0.5 composite of nickel cobalt oxide/graphene on electrolyte comprises nickel nitrate and cobalt composite of nickel cobalt oxide/graphene on calcination step (c) is performed at a temperature
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials3 process steps
Synthesis and performance analysis of three-dimensional NiCo₂O₄/graphene/Ni foam (NiCo₂O₄/G/NF) composite. GO was prepared by improved Hummers method. Nickel foam (1cm x 3cm) was cleaned with 6M HCl, then graphene was electrodeposited from GO suspension (1.5 g/L, 0.5 V, 10 min). Bimetallic (Ni,Co) hydroxide was electrodeposited from aqueous 6 mM Co(NO₃)2·6H₂O and 3 mM Ni(NO₃)2·6H₂O at -1.0 V for 10 min. The sample was then calcined at 300°C for 2 h (ramp 1°C/min) to convert hydroxide to NiCo₂O4. ~15 mg of graphene sheets and NiCo₂O₄ deposited per 1 cm x 1 cm of Ni foam; graphene ~10%. Electrode exhibited specific capacitance of 2,260 F/g at 1 A/g and 1,950 F/g at high current density; 92.8% capacity retention after 10,000 cycles at 3 A/g.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional nickel cobalt oxide/graphene/nickel foam supercapacitor electrode
Materials described outside the worked examples.
nickel cobalt hydroxide nanoparticles
nickel cobalt oxide nanoparticles
NixCoyOz
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Capacitance | 2260 F/g | — |
Specific Capacitance |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,928,967Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
-5. Canceled
Canceled
A method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam comprising the steps of: (a) forming a graphene oxide thin film by immersing nickel foam in a graphene oxide solution and electrodepositing simultaneously; (b) forming nickel cobalt hydroxide nanoparticles on the top of graphene oxide layer by adding the nickel foam covered with the graphene oxide thin film in an electrolyte solution mixed with bimetallic nickel and cobalt hydroxide and electrodepositing simultaneously; and (c) calcining the nickel foam covered with the graphene oxide thin film and nickel cobalt hydroxide nanoparticles. Original
The method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam according to claim 6, wherein the electrodeposition step (a) is performed at 0.1 to 1 V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the nitrate at a molar ratio of 1:3 to 3:1. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the of 200 to 350 ° C for 1 to 5 h. Original
-13. Canceled
Canceled composite of nickel cobalt oxide/graphene on electrodeposition step (b) is performed at -1.5 to -0.5 composite of nickel cobalt oxide/graphene on electrolyte comprises nickel nitrate and cobalt composite of nickel cobalt oxide/graphene on calcination step (c) is performed at a temperature
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials3 process steps
Synthesis and performance analysis of three-dimensional NiCo₂O₄/graphene/Ni foam (NiCo₂O₄/G/NF) composite. GO was prepared by improved Hummers method. Nickel foam (1cm x 3cm) was cleaned with 6M HCl, then graphene was electrodeposited from GO suspension (1.5 g/L, 0.5 V, 10 min). Bimetallic (Ni,Co) hydroxide was electrodeposited from aqueous 6 mM Co(NO₃)2·6H₂O and 3 mM Ni(NO₃)2·6H₂O at -1.0 V for 10 min. The sample was then calcined at 300°C for 2 h (ramp 1°C/min) to convert hydroxide to NiCo₂O4. ~15 mg of graphene sheets and NiCo₂O₄ deposited per 1 cm x 1 cm of Ni foam; graphene ~10%. Electrode exhibited specific capacitance of 2,260 F/g at 1 A/g and 1,950 F/g at high current density; 92.8% capacity retention after 10,000 cycles at 3 A/g.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional nickel cobalt oxide/graphene/nickel foam supercapacitor electrode
Materials described outside the worked examples.
nickel cobalt hydroxide nanoparticles
nickel cobalt oxide nanoparticles
NixCoyOz
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Capacitance | 2260 F/g | — |
Specific Capacitance |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 9,928,967Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
-5. Canceled
Canceled
A method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam comprising the steps of: (a) forming a graphene oxide thin film by immersing nickel foam in a graphene oxide solution and electrodepositing simultaneously; (b) forming nickel cobalt hydroxide nanoparticles on the top of graphene oxide layer by adding the nickel foam covered with the graphene oxide thin film in an electrolyte solution mixed with bimetallic nickel and cobalt hydroxide and electrodepositing simultaneously; and (c) calcining the nickel foam covered with the graphene oxide thin film and nickel cobalt hydroxide nanoparticles. Original
The method for preparing a three-dimensional composite of nickel cobalt oxide/graphene on nickel foam according to claim 6, wherein the electrodeposition step (a) is performed at 0.1 to 1 V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein V for 5 to 15 m in. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the nitrate at a molar ratio of 1:3 to 3:1. Original
The method for preparing a three-dimensional nickel foam according to claim 6, wherein the of 200 to 350 ° C for 1 to 5 h. Original
-13. Canceled
Canceled composite of nickel cobalt oxide/graphene on electrodeposition step (b) is performed at -1.5 to -0.5 composite of nickel cobalt oxide/graphene on electrolyte comprises nickel nitrate and cobalt composite of nickel cobalt oxide/graphene on calcination step (c) is performed at a temperature
Embodiments described in the patent, grouped by the materials and process steps they use.
5 materials3 process steps
Synthesis and performance analysis of three-dimensional NiCo₂O₄/graphene/Ni foam (NiCo₂O₄/G/NF) composite. GO was prepared by improved Hummers method. Nickel foam (1cm x 3cm) was cleaned with 6M HCl, then graphene was electrodeposited from GO suspension (1.5 g/L, 0.5 V, 10 min). Bimetallic (Ni,Co) hydroxide was electrodeposited from aqueous 6 mM Co(NO₃)2·6H₂O and 3 mM Ni(NO₃)2·6H₂O at -1.0 V for 10 min. The sample was then calcined at 300°C for 2 h (ramp 1°C/min) to convert hydroxide to NiCo₂O4. ~15 mg of graphene sheets and NiCo₂O₄ deposited per 1 cm x 1 cm of Ni foam; graphene ~10%. Electrode exhibited specific capacitance of 2,260 F/g at 1 A/g and 1,950 F/g at high current density; 92.8% capacity retention after 10,000 cycles at 3 A/g.
Layer stacks claimed or described, ordered top of device to substrate.
three-dimensional nickel cobalt oxide/graphene/nickel foam supercapacitor electrode
Materials described outside the worked examples.
nickel cobalt hydroxide nanoparticles
nickel cobalt oxide nanoparticles
NixCoyOz
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Specific Capacitance | 2260 F/g | — |
Specific Capacitance |
Related documents with shared materials, methods, properties, or citations.
graphite powder
| 1950 F/g |
| — |
Capacitance Retention | 92.8 % | — |
Graphene Sheet Thickness | — | graphene oxide/graphene |
Nanoparticle Diameter | — | NixCoyOz |
Pressure | 1–7 pa | — |
Pressure | 10–50 pa | — |
Thickness | 0.4–2 nm | — |
Thickness | 2–10 nm | — |
Voltage | 0.1–1 V | — |
Thickness | 3–5 nm | — |
Temperature | 200–350 °C | — |
graphite powder
| 1950 F/g |
| — |
Capacitance Retention | 92.8 % | — |
Graphene Sheet Thickness | — | graphene oxide/graphene |
Nanoparticle Diameter | — | NixCoyOz |
Pressure | 1–7 pa | — |
Pressure | 10–50 pa | — |
Thickness | 0.4–2 nm | — |
Thickness | 2–10 nm | — |
Voltage | 0.1–1 V | — |
Thickness | 3–5 nm | — |
Temperature | 200–350 °C | — |
graphite powder
| 1950 F/g |
| — |
Capacitance Retention | 92.8 % | — |
Graphene Sheet Thickness | — | graphene oxide/graphene |
Nanoparticle Diameter | — | NixCoyOz |
Pressure | 1–7 pa | — |
Pressure | 10–50 pa | — |
Thickness | 0.4–2 nm | — |
Thickness | 2–10 nm | — |
Voltage | 0.1–1 V | — |
Thickness | 3–5 nm | — |
Temperature | 200–350 °C | — |
graphite powder
| 1950 F/g |
| — |
Capacitance Retention | 92.8 % | — |
Graphene Sheet Thickness | — | graphene oxide/graphene |
Nanoparticle Diameter | — | NixCoyOz |
Pressure | 1–7 pa | — |
Pressure | 10–50 pa | — |
Thickness | 0.4–2 nm | — |
Thickness | 2–10 nm | — |
Voltage | 0.1–1 V | — |
Thickness | 3–5 nm | — |
Temperature | 200–350 °C | — |