Patent
US 10,815,5803D REDUCED GRAPHENE OXIDE FOAMS EMBEDDED WITH NANOCATALYSTS, SYNTHESIZING METHODS AND APPLICATIONS OF SAME
Wei Zhao
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,815,580Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B shows appearance of the RGO-Ni-Fe product in autoclave after the reaction, according to one embodiment of the invention.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
FIG. 8 shows Tafel plots of (a) a RGO-Ni-Fe foam produced by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C, and (c) a RGO-Ni-Fe …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of synthesizing a three-dimensional (3 D) reduced graphene oxide (RGO) foam embedded with nanocatalysts, comprising: providing a first solution containing nickel (II) nitrate, a second solution containing iron (I II) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni-Fe mixture suspension; adjusting a pH value of the GO-Ni-Fe mixture suspension to be about 3.5; and performing hydrothermal reaction in the GO-Ni-Fe mixture suspension to form a RGO-Ni-Fe foam, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in a porous structure of the 3D RGO foam. Currently amended
The method of claim 1, wherein the GO-Ni-Fe mixture suspension is characterized with-. a molar ratio of C:Ni:Fe=14:1: 0.33. Currently amended
The method of claim 1, wherein the first and second solutions are provided by dissolving Ni(N 0 3) 2 ' 6H 2 0 and Fe(N 0 3) 3 9H 2 0 into deionized water, respectfully. Original
The method of claim 1, wherein the pH value of the GO-Ni-Fe mixture suspension is adjusted by adding a Na O H solution therein. Currently amended
The method of claim 1, wherein the hydrothermal reaction in the GO-Ni-Fe mixture suspension is performed in a sealed autoclave for hydrothermal reaction at a predetermined temperature for a period of time. Currently amended
The method of claim 1, further comprising washing the RGO-Ni-Fe foam with deionized water. Original
The method of claim 1, further comprising, prior to performing hydrothermal reaction in the GO-Ni-Fe mixture suspension, ultrasonicateing the GO-Ni- Fe mixture suspension to remove air bubbles that are trapped in the GO-Ni-Fe mixture suspension. Currently amended
A 3D RGO foam embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
A device for water splitting, comprising a working electrode containing 3D RGO foams embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
12-25.. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
water splitting device
Materials described outside the worked examples.
graphene oxide (GO)
nickel (II) nitrate
Ni(NO₃)2
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Particle Size | ≤ 5 nm | Ni-Fe oxide nanoparticles |
Voltage | 0.8–0.8 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,815,580Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B shows appearance of the RGO-Ni-Fe product in autoclave after the reaction, according to one embodiment of the invention.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
FIG. 8 shows Tafel plots of (a) a RGO-Ni-Fe foam produced by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C, and (c) a RGO-Ni-Fe …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of synthesizing a three-dimensional (3 D) reduced graphene oxide (RGO) foam embedded with nanocatalysts, comprising: providing a first solution containing nickel (II) nitrate, a second solution containing iron (I II) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni-Fe mixture suspension; adjusting a pH value of the GO-Ni-Fe mixture suspension to be about 3.5; and performing hydrothermal reaction in the GO-Ni-Fe mixture suspension to form a RGO-Ni-Fe foam, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in a porous structure of the 3D RGO foam. Currently amended
The method of claim 1, wherein the GO-Ni-Fe mixture suspension is characterized with-. a molar ratio of C:Ni:Fe=14:1: 0.33. Currently amended
The method of claim 1, wherein the first and second solutions are provided by dissolving Ni(N 0 3) 2 ' 6H 2 0 and Fe(N 0 3) 3 9H 2 0 into deionized water, respectfully. Original
The method of claim 1, wherein the pH value of the GO-Ni-Fe mixture suspension is adjusted by adding a Na O H solution therein. Currently amended
The method of claim 1, wherein the hydrothermal reaction in the GO-Ni-Fe mixture suspension is performed in a sealed autoclave for hydrothermal reaction at a predetermined temperature for a period of time. Currently amended
The method of claim 1, further comprising washing the RGO-Ni-Fe foam with deionized water. Original
The method of claim 1, further comprising, prior to performing hydrothermal reaction in the GO-Ni-Fe mixture suspension, ultrasonicateing the GO-Ni- Fe mixture suspension to remove air bubbles that are trapped in the GO-Ni-Fe mixture suspension. Currently amended
A 3D RGO foam embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
A device for water splitting, comprising a working electrode containing 3D RGO foams embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
12-25.. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
water splitting device
Materials described outside the worked examples.
graphene oxide (GO)
nickel (II) nitrate
Ni(NO₃)2
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Particle Size | ≤ 5 nm | Ni-Fe oxide nanoparticles |
Voltage | 0.8–0.8 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,815,580Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B shows appearance of the RGO-Ni-Fe product in autoclave after the reaction, according to one embodiment of the invention.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
FIG. 8 shows Tafel plots of (a) a RGO-Ni-Fe foam produced by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C, and (c) a RGO-Ni-Fe …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of synthesizing a three-dimensional (3 D) reduced graphene oxide (RGO) foam embedded with nanocatalysts, comprising: providing a first solution containing nickel (II) nitrate, a second solution containing iron (I II) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni-Fe mixture suspension; adjusting a pH value of the GO-Ni-Fe mixture suspension to be about 3.5; and performing hydrothermal reaction in the GO-Ni-Fe mixture suspension to form a RGO-Ni-Fe foam, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in a porous structure of the 3D RGO foam. Currently amended
The method of claim 1, wherein the GO-Ni-Fe mixture suspension is characterized with-. a molar ratio of C:Ni:Fe=14:1: 0.33. Currently amended
The method of claim 1, wherein the first and second solutions are provided by dissolving Ni(N 0 3) 2 ' 6H 2 0 and Fe(N 0 3) 3 9H 2 0 into deionized water, respectfully. Original
The method of claim 1, wherein the pH value of the GO-Ni-Fe mixture suspension is adjusted by adding a Na O H solution therein. Currently amended
The method of claim 1, wherein the hydrothermal reaction in the GO-Ni-Fe mixture suspension is performed in a sealed autoclave for hydrothermal reaction at a predetermined temperature for a period of time. Currently amended
The method of claim 1, further comprising washing the RGO-Ni-Fe foam with deionized water. Original
The method of claim 1, further comprising, prior to performing hydrothermal reaction in the GO-Ni-Fe mixture suspension, ultrasonicateing the GO-Ni- Fe mixture suspension to remove air bubbles that are trapped in the GO-Ni-Fe mixture suspension. Currently amended
A 3D RGO foam embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
A device for water splitting, comprising a working electrode containing 3D RGO foams embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
12-25.. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
water splitting device
Materials described outside the worked examples.
graphene oxide (GO)
nickel (II) nitrate
Ni(NO₃)2
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Particle Size | ≤ 5 nm | Ni-Fe oxide nanoparticles |
Voltage | 0.8–0.8 V |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
US 10,815,580Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1 B shows appearance of the RGO-Ni-Fe product in autoclave after the reaction, according to one embodiment of the invention.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
FIG. 8 shows Tafel plots of (a) a RGO-Ni-Fe foam produced by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C, and (c) a RGO-Ni-Fe …
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A method of synthesizing a three-dimensional (3 D) reduced graphene oxide (RGO) foam embedded with nanocatalysts, comprising: providing a first solution containing nickel (II) nitrate, a second solution containing iron (I II) nitrate, and a graphene oxide (GO) aqueous suspension; mixing the GO aqueous suspension with the first solution and the second solution to form a GO-Ni-Fe mixture suspension; adjusting a pH value of the GO-Ni-Fe mixture suspension to be about 3.5; and performing hydrothermal reaction in the GO-Ni-Fe mixture suspension to form a RGO-Ni-Fe foam, wherein nanocatalysts containing Ni-Fi oxide particles are embedded in a porous structure of the 3D RGO foam. Currently amended
The method of claim 1, wherein the GO-Ni-Fe mixture suspension is characterized with-. a molar ratio of C:Ni:Fe=14:1: 0.33. Currently amended
The method of claim 1, wherein the first and second solutions are provided by dissolving Ni(N 0 3) 2 ' 6H 2 0 and Fe(N 0 3) 3 9H 2 0 into deionized water, respectfully. Original
The method of claim 1, wherein the pH value of the GO-Ni-Fe mixture suspension is adjusted by adding a Na O H solution therein. Currently amended
The method of claim 1, wherein the hydrothermal reaction in the GO-Ni-Fe mixture suspension is performed in a sealed autoclave for hydrothermal reaction at a predetermined temperature for a period of time. Currently amended
The method of claim 1, further comprising washing the RGO-Ni-Fe foam with deionized water. Original
The method of claim 1, further comprising, prior to performing hydrothermal reaction in the GO-Ni-Fe mixture suspension, ultrasonicateing the GO-Ni- Fe mixture suspension to remove air bubbles that are trapped in the GO-Ni-Fe mixture suspension. Currently amended
A 3D RGO foam embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
A device for water splitting, comprising a working electrode containing 3D RGO foams embedded with nanocatalysts, synthesized according to the method of claim 1. Withdrawn
12-25.. Canceled
Canceled
Layer stacks claimed or described, ordered top of device to substrate.
water splitting device
Materials described outside the worked examples.
graphene oxide (GO)
nickel (II) nitrate
Ni(NO₃)2
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 2A shows C 1 s XPS spectra of three RGO foam samples, according to embodiments of the invention. The insert in
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Particle Size | ≤ 5 nm | Ni-Fe oxide nanoparticles |
Voltage | 0.8–0.8 V |
Related documents with shared materials, methods, properties, or citations.
iron (III) nitrate
Fe(NO₃)3
3D reduced graphene oxide foam embedded with Ni-Fe oxide nanocatalysts
nickel(II) nitrate hexahydrate
Ni(NO₃)2·6H₂O
iron(III) nitrate nonahydrate
Fe(NO₃)3·9H₂O
sodium hydroxide solution
NaOH
Ni-Fe oxide nanoparticles
MoS₂ nanocatalysts
MoS₂
sodium molybdate
Na₂MoO₄
L-cysteine
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
| — |
Thickness | 2–5 nm | — |
Temperature | 160–200 °C | — |
Voltage | 0–0.8 V | — |
Thickness | 560–670 cm | — |
Thickness | 20–30 nm | — |
Pressure | ≤ 1 atm | — |
Temperature | ≤ 374 °C | — |
Voltage | ≤ 1.65 V | — |
iron (III) nitrate
Fe(NO₃)3
3D reduced graphene oxide foam embedded with Ni-Fe oxide nanocatalysts
nickel(II) nitrate hexahydrate
Ni(NO₃)2·6H₂O
iron(III) nitrate nonahydrate
Fe(NO₃)3·9H₂O
sodium hydroxide solution
NaOH
Ni-Fe oxide nanoparticles
MoS₂ nanocatalysts
MoS₂
sodium molybdate
Na₂MoO₄
L-cysteine
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
| — |
Thickness | 2–5 nm | — |
Temperature | 160–200 °C | — |
Voltage | 0–0.8 V | — |
Thickness | 560–670 cm | — |
Thickness | 20–30 nm | — |
Pressure | ≤ 1 atm | — |
Temperature | ≤ 374 °C | — |
Voltage | ≤ 1.65 V | — |
iron (III) nitrate
Fe(NO₃)3
3D reduced graphene oxide foam embedded with Ni-Fe oxide nanocatalysts
nickel(II) nitrate hexahydrate
Ni(NO₃)2·6H₂O
iron(III) nitrate nonahydrate
Fe(NO₃)3·9H₂O
sodium hydroxide solution
NaOH
Ni-Fe oxide nanoparticles
MoS₂ nanocatalysts
MoS₂
sodium molybdate
Na₂MoO₄
L-cysteine
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
| — |
Thickness | 2–5 nm | — |
Temperature | 160–200 °C | — |
Voltage | 0–0.8 V | — |
Thickness | 560–670 cm | — |
Thickness | 20–30 nm | — |
Pressure | ≤ 1 atm | — |
Temperature | ≤ 374 °C | — |
Voltage | ≤ 1.65 V | — |
iron (III) nitrate
Fe(NO₃)3
3D reduced graphene oxide foam embedded with Ni-Fe oxide nanocatalysts
nickel(II) nitrate hexahydrate
Ni(NO₃)2·6H₂O
iron(III) nitrate nonahydrate
Fe(NO₃)3·9H₂O
sodium hydroxide solution
NaOH
Ni-Fe oxide nanoparticles
MoS₂ nanocatalysts
MoS₂
sodium molybdate
Na₂MoO₄
L-cysteine
FIG. 3 shows XRD patterns of (a) GO-Ni-Fe gel-like mixture before hydrothermal reaction; (b) RGO-Ni-Fe foam from hydrothermal reaction; and (c) RGO-Ni-Fe foam …
FIG. 4 shows Raman spectra of RGO-Ni-Fe hybrid materials: (a) a GO-Ni-Fe gel-like mixture before hydrothermal reduction; (b) a RGO-Ni-Fe foam from hydrothermal …
FIGS. 5A-5 C show SEM images of a RGO foam through a hydrothermal process, RGO- Ni-Fe foam fabricated from hydrothermal reaction, and a RGO-Ni-Fe foam further …
FIGS. 6C-6D show TEM images of a RGO-Ni-Fe foam annealed at about 500 ° C in different scales, according to one embodiments of the invention.
FIG. 7 shows polarization curves of (a) a RGO-Ni-Fe foam prepared by hydrothermal reduction, (b) a RGO-Ni-Fe foam annealed at about 500 ° C and (c) a RGO-Ni-Fe …
| — |
Thickness | 2–5 nm | — |
Temperature | 160–200 °C | — |
Voltage | 0–0.8 V | — |
Thickness | 560–670 cm | — |
Thickness | 20–30 nm | — |
Pressure | ≤ 1 atm | — |
Temperature | ≤ 374 °C | — |
Voltage | ≤ 1.65 V | — |