Work

Relatively Low Crystalline Heterojunction Ru‐RuP 2 /WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer

Year: 2025

Type: article

Abstract: Substantial challenges remain in fabricating inexpensive yet highly efficient and durable electrocatalysts for HER applications. In this study, a relatively low‐crystallinity Ru‐RuP 2 heterostructure supported on tungsten carbide (LC‐Ru‐RuP 2 /WC) was fabricated through a precisely controlled gas‐phase phosphidation strategy. The optimized LC‐Ru‐RuP 2 /WC catalyst demonstrates exceptional performance in acidic media, achieving a low overpotential of 48.08 mV at 10 mA cm −2 while maintaining 95% activity retention over 30 h. Density functional theory (DFT) calculation results reveal that LC‐Ru‐RuP 2 /WC enhances HER via interfacial electron redistribution optimizes the d‐band center position, weakening hydrogen adsorption strength (rf H* = 0.042 eV) and effectively lowering the water dissociation energy barrier.

Source: ChemCatChem

DOI: 10.1002/cctc.202501072

Authors: Zhao Jing, Chen Zihao, Sun Liangliang, Yan Jipeng, Xue Peiyao, Xue Lirong, Liu Jie

Institutions: Yili Normal University, Jingdezhen Ceramic Institute, AGH University of Krakow

Language: English

Topic: Electrocatalysts for Energy Conversion

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

OpenAlex ID: W4415493063

FWCI: 0.142

Cites: 30

Cited by: 1

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