Constructing Mn‐Co‐Fe Ternary Metal Phosphides Nanosheet Arrays as Bifunctional Electrocatalysts for Overall Water Splitting DOI Creative Commons
Fan Wang,

Zhen Pei,

Zhou Xu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Bifunctional electrocatalysts with high efficiency, stability, and distinguished performance have attracted more attention in the field of overall water splitting, while composition structure design are very essential for superb low price. In this work, heterostructure Mn‐Co‐Fe‐P nanoarrays is situ grown on nickel foam (NF) by simple hydrothermal method phosphating method. The resultant catalyst has favorable electrocatalytic oxygen evolution reaction (OER) overpotential at 10 (100) mA cm −2 192 (279) mV Tafel slope 43.75 dec −1 , hydrogen (HER) 98 (152) 40.68 full voltage 1.66 V 100 when applied to splitting. 3D provides active sites, growth improves stability conductivity catalyst. This binder‐free electrocatalyst excellent catalytic a promising bifunctional candidate

Language: Английский

Ionized Jet Deposition of MoS2 on Gas Diffusion Layer Electrodes for Next Generation Alkaline Electrolyzers DOI Creative Commons

Elisabetta Campedelli,

Marco Mazzucato, Mattia Parnigotto

et al.

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract This study focuses on optimizing MoS₂ catalysts for the hydrogen evolution reaction (HER) in anion exchange membrane (AEM) electrolyzers. A scalable Ionized Jet Deposition (IJD) technique is employed to deposit onto various carbon supports, exploring relationship between substrate properties and catalytic performance. The results demonstrate that choice plays a pivotal role enhancing HER activity durability. deposited Freudenberg support exhibited best activity, achieving current density of 10 mA µg⁻¹Mo at −0.48 V versus RHE an alkaline environment, even with low catalyst loading (12–49 µg cm⁻ 2 ). Conversely, sulfur‐doped supports showed lower but superior stability, minimal voltage degradation just 0.025 after 6 h testing . To further understand these results, bubble studies, contact angle measurements are conducted. Stable electrodes demonstrated small angles enhanced release from surface, indicating importance hydrophilicity improving performance work highlights synergy synthesis techniques optimization, offering promising path advancing cost‐efficient, durable electrocatalysts large‐scale AEM electrolyzers green production.

Language: Английский

Citations

0
Constructing Mn‐Co‐Fe Ternary Metal Phosphides Nanosheet Arrays as Bifunctional Electrocatalysts for Overall Water Splitting DOI Creative Commons
Fan Wang,

Zhen Pei,

Zhou Xu

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Abstract Bifunctional electrocatalysts with high efficiency, stability, and distinguished performance have attracted more attention in the field of overall water splitting, while composition structure design are very essential for superb low price. In this work, heterostructure Mn‐Co‐Fe‐P nanoarrays is situ grown on nickel foam (NF) by simple hydrothermal method phosphating method. The resultant catalyst has favorable electrocatalytic oxygen evolution reaction (OER) overpotential at 10 (100) mA cm −2 192 (279) mV Tafel slope 43.75 dec −1 , hydrogen (HER) 98 (152) 40.68 full voltage 1.66 V 100 when applied to splitting. 3D provides active sites, growth improves stability conductivity catalyst. This binder‐free electrocatalyst excellent catalytic a promising bifunctional candidate

Language: Английский

Citations

0