Electrodeposited NiB Films as Bifunctional Electrocatalysts in Alkaline Water Electrolizer DOI Creative Commons

J. R. Lopez-Montelongo,

V. Becerril-Estrada,

Jorge Vázquez-Arenas

et al.

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(11), P. 116501 - 116501

Published: Oct. 28, 2024

Sustainable electrochemical energy generation requires cost-effective, noble-metal-free electrocatalysts for hydrogen and oxygen production in electrolyzers. This study used electrodeposition to create crystalline NiB films with different boron (B) contents—Ni-(1.17 wt% B), Ni-(1.06 Ni-(0.94 Ni-(0.89 B)—on Fluorine-doped tin oxide coated glass (FTO) substrates. These were tested as bifunctional electrocatalyst electrodes the evolution reaction (HER), (OER) alkaline media. The films’ composition morphology analyzed using SEM, AFM, XRD, GD-OES, XPS; while Linear sweep voltammetry assessed their electrocatalytic performance. Higher B content promoted formation of electroactive NiOOH, enhancing OER. Ni-(1.17 wt%B) electrode required an overpotential 380 mV reach 10 mA cm⁻ 2 OER, B) 146 same current density HER. An water electrolyzer anode cathode achieved a at 1.70 V overall splitting. system showed stability over 12 h testing. results indicate that on FTO substrates are promising, low-cost electrolysis, offering alternative noble-metal-based electrocatalysts.

Language: Английский

Microenvironment Tailoring of NiCo Alloys Coupled with FePc as Efficient Bifunctional Catalysts for High-Rate Zn-Air Batteries DOI
Xiaorong Chen,

Dandan Yue,

Xinmeng Yu

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(32), P. 17038 - 17048

Published: Aug. 3, 2024

The practical application of Zn-air batteries require exploring cost-effective and durable bifunctional electrocatalysts. However, the simultaneous preparation catalysts with activities for oxygen reduction reaction (ORR) precipitation (OER) remains challenging. Herein, we synthesized a novel hybrid catalyst (FePc/NiCo/CNT), which couples NiCo alloy FePc through electrostatic interaction. interaction between can enhance intrinsic catalytic activity active site Fe-N

Language: Английский

Citations

1
Research progress of single-atomic series catalysts for anodic coupled electrolysis of water and small molecules DOI

Jiahui Xiao,

Cunpeng Duan,

Jinlu Song

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 157208 - 157208

Published: Oct. 1, 2024

Language: Английский

Citations

1
General synthesis of carbon-guarded cobalt-based nanospheres for oxygen reduction electrocatalysis DOI

Shaoyang Niu,

Sisi Wei,

Dandan Yue

et al.

Catalysis Science & Technology, Journal Year: 2023, Volume and Issue: 13(24), P. 7076 - 7084

Published: Jan. 1, 2023

We construct carbon-guarded cobalt-based nanospheres composed of metal nanoparticles encased in a nitrogen doped carbon shell (M@NC NP), as efficient ORR catalysts.

Language: Английский

Citations

2
Chemical Coprecipitation-Thermal Synthesis of Nano-Ni-Co Alloy for Efficient Hydrogen and Oxygen Evolution Reactions DOI
Yuanjun Sun, Zelin Li, Zhu Fei

et al.

Electrocatalysis, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 22, 2024

Language: Английский

Citations

0
Electrodeposited NiB Films as Bifunctional Electrocatalysts in Alkaline Water Electrolizer DOI Creative Commons

J. R. Lopez-Montelongo,

V. Becerril-Estrada,

Jorge Vázquez-Arenas

et al.

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(11), P. 116501 - 116501

Published: Oct. 28, 2024

Sustainable electrochemical energy generation requires cost-effective, noble-metal-free electrocatalysts for hydrogen and oxygen production in electrolyzers. This study used electrodeposition to create crystalline NiB films with different boron (B) contents—Ni-(1.17 wt% B), Ni-(1.06 Ni-(0.94 Ni-(0.89 B)—on Fluorine-doped tin oxide coated glass (FTO) substrates. These were tested as bifunctional electrocatalyst electrodes the evolution reaction (HER), (OER) alkaline media. The films’ composition morphology analyzed using SEM, AFM, XRD, GD-OES, XPS; while Linear sweep voltammetry assessed their electrocatalytic performance. Higher B content promoted formation of electroactive NiOOH, enhancing OER. Ni-(1.17 wt%B) electrode required an overpotential 380 mV reach 10 mA cm⁻ 2 OER, B) 146 same current density HER. An water electrolyzer anode cathode achieved a at 1.70 V overall splitting. system showed stability over 12 h testing. results indicate that on FTO substrates are promising, low-cost electrolysis, offering alternative noble-metal-based electrocatalysts.

Language: Английский

Citations

0