Relatively Low Crystalline Heterojunction Ru-RuP2/WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer

Zhao Jing; Chen Zihao; Sun Liangliang; Yan Jipeng; Xue Peiyao; Xue Lirong; Liu Jie

doi:10.1002/cctc.202501072

Relatively Low Crystalline Heterojunction Ru-RuP₂/WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer

Zhao Jing
, Chen Zihao
, Sun Liangliang^*
, Yan Jipeng
, Xue Peiyao
, Xue Lirong
, Liu Jie

^*Corresponding author for this work

Yili Normal University
Jingdezhen Ceramic Institute
AGH University of Krakow

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Substantial challenges remain in fabricating inexpensive yet highly efficient and durable electrocatalysts for HER applications. In this study, a relatively low-crystallinity Ru-RuP₂ heterostructure supported on tungsten carbide (LC-Ru-RuP₂/WC) was fabricated through a precisely controlled gas-phase phosphidation strategy. The optimized LC-Ru-RuP₂/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-RuP₂/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.

Original language	English
Article number	e01072
Journal	ChemCatChem
Volume	17
Issue number	23
DOIs	https://doi.org/10.1002/cctc.202501072
State	Published - 8 Dec 2025
Externally published	Yes

Keywords

Acid solution
Hydrogen evolution reaction
PEM electrode
Relatively low crystalline
Ru-based catalysts

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10.1002/cctc.202501072

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title = "Relatively Low Crystalline Heterojunction Ru-RuP2/WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer",

abstract = "Substantial challenges remain in fabricating inexpensive yet highly efficient and durable electrocatalysts for HER applications. In this study, a relatively low-crystallinity Ru-RuP2 heterostructure supported on tungsten carbide (LC-Ru-RuP2/WC) was fabricated through a precisely controlled gas-phase phosphidation strategy. The optimized LC-Ru-RuP2/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-RuP2/WC enhances HER via interfacial electron redistribution optimizes the d-band center position, weakening hydrogen adsorption strength (rfH* = 0.042 eV) and effectively lowering the water dissociation energy barrier.",

keywords = "Acid solution, Hydrogen evolution reaction, PEM electrode, Relatively low crystalline, Ru-based catalysts",

author = "Zhao Jing and Chen Zihao and Sun Liangliang and Yan Jipeng and Xue Peiyao and Xue Lirong and Liu Jie",

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doi = "10.1002/cctc.202501072",

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T1 - Relatively Low Crystalline Heterojunction Ru-RuP2/WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer

AU - Jing, Zhao

AU - Zihao, Chen

AU - Liangliang, Sun

AU - Jipeng, Yan

AU - Peiyao, Xue

AU - Lirong, Xue

AU - Jie, Liu

PY - 2025/12/8

Y1 - 2025/12/8

N2 - Substantial challenges remain in fabricating inexpensive yet highly efficient and durable electrocatalysts for HER applications. In this study, a relatively low-crystallinity Ru-RuP2 heterostructure supported on tungsten carbide (LC-Ru-RuP2/WC) was fabricated through a precisely controlled gas-phase phosphidation strategy. The optimized LC-Ru-RuP2/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-RuP2/WC enhances HER via interfacial electron redistribution optimizes the d-band center position, weakening hydrogen adsorption strength (rfH* = 0.042 eV) and effectively lowering the water dissociation energy barrier.

AB - Substantial challenges remain in fabricating inexpensive yet highly efficient and durable electrocatalysts for HER applications. In this study, a relatively low-crystallinity Ru-RuP2 heterostructure supported on tungsten carbide (LC-Ru-RuP2/WC) was fabricated through a precisely controlled gas-phase phosphidation strategy. The optimized LC-Ru-RuP2/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-RuP2/WC enhances HER via interfacial electron redistribution optimizes the d-band center position, weakening hydrogen adsorption strength (rfH* = 0.042 eV) and effectively lowering the water dissociation energy barrier.

KW - Acid solution

KW - Hydrogen evolution reaction

KW - PEM electrode

KW - Relatively low crystalline

KW - Ru-based catalysts

UR - https://www.scopus.com/pages/publications/105019533851

U2 - 10.1002/cctc.202501072

DO - 10.1002/cctc.202501072

M3 - 文章

AN - SCOPUS:105019533851

SN - 1867-3880

VL - 17

JO - ChemCatChem

JF - ChemCatChem

IS - 23

M1 - e01072

ER -

Relatively Low Crystalline Heterojunction Ru-RuP₂/WC for Hydrogen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer

Abstract

Keywords

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