成果归属作者：

房明浩 ; 闵鑫

成果归属机构：

材料科学与工程学院

作者：

Zhu, Xinyu ; Fang, Minghao ; Han, Muqing ; Yang, Shujie ; Li, Yanghong ; Zhan, Meiling ; Yang, Bozhi ; Ke, Shaorou ; Li, Xin ; Min, Xin

单位：

China Univ Geosci, Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Engn Res Ctr, Minist Educ Geol Carbon Storage & Low, Beijing 100083, Peoples R China

关键词：

OXIDATION; VACANCIES; OXIDES; RAMAN

摘要：

Addressing the inherent activity-stability trade-off and industrial application bottlenecks of ruthenium-based oxygen evolution reaction (OER) catalysts, this study proposes a novel microwave-field-induced strategy coupling in-situ foaming and selenization of a metal-organic framework (ZIF-67). This approach successfully synthesizes a composite catalyst comprising cobalt-doped ruthenium selenide supported on nitrogen-doped porous carbon (Co-RuSe2/N-C). Leveraging the synergistic effect of microwave dielectric heating and the pyrolysis-induced foaming of Ru-ZIF-67, the strategy achieves the in-situ construction of a three-dimensional porous carbon skeleton and the precise anchoring of highly dispersed RuSe2 nanocrystals. Combined experimental characterization and theoretical calculations reveal the strong electronic synergy between cobalt dopant sites and the pyrite phase of RuSe2 modulates interfacial electron rearrangement, optimizes the adsorption free energy of reaction intermediates, and significantly enhances catalytic reaction kinetics. The resulting catalyst exhibits breakthrough performance: its OER mass activity surpasses that of commercial IrO2 by 26.2 times and maintains well performance with overpotential increases of merely 22.4 mV after 3000 cycles, which provides a new paradigm for developing efficient, stable, and low-cost practical electrocatalysts.

基金：

National Natural Science Foundation of China [52174379]; Fundamental Research Funds for the Central Universities [265QZ2022004]

语种：

英文

DOI：

10.1016/j.apsusc.2025.164759

来源：

APPLIED SURFACE SCIENCE,2026():.

出版日期：

2026-02-01

提交日期：

2025-11-15

引用参考：

Zhu, Xinyu; Fang, Minghao; Han, Muqing; Yang, Shujie; Li, Yanghong; Zhan, Meiling; Yang, Bozhi; Ke, Shaorou; Li, Xin; Min, Xin. Design of MOF-derived porous N-doped carbon-supported Co-RuSe2 via microwave-triggered in situ foaming for efficient alkaline oxygen evolution[J]. APPLIED SURFACE SCIENCE,2026():.