Mo-Doping Emergence in FeOOH/NiS    x    Heterostructure for Ultrastable Alkaline Overall Water Electrolysis

Zhang, Ruiqian; Qian, Binbin; Zhang, Dantong; Chen, C. L. Philip; Luo, Yanping; Xu, Ke; Said, Amir; Jiang, Jianfeng; Chen, Kunfeng; Komarneni, S.; Yang, Chunlei; Xue, Dongfeng

doi:10.1021/acscatal.5c07720

articleACS CatalysisFeb 11, 2026Closed access

Mo-Doping Emergence in FeOOH/NiS x Heterostructure for Ultrastable Alkaline Overall Water Electrolysis

RZRuiqian Zhang BQBinbin Qian DZDantong Zhang CLC. L. Philip Chen YLYanping Luo

Photonics (United States) · Shenzhen Institutes of Advanced Technology · +7 more institutions

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Abstract

Developing efficient bifunctional electrocatalysts that synergistically enhance hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performance remains challenging for advanced electrochemical water splitting. A “lattice doping-interface coupling” strategy is proposed to achieve simultaneous intraphase and interfacial regulation in FeOOH/NiSx heterostructures by doping molybdenum in nickel sulfide. Mo doping induces electron rearrangement within NiSx and modulates the electronic states of both Fe and Ni sites via valence electron effects, optimizing intermediate adsorption to enhance HER/OER activity. It also strengthens metal–sulfur bonding and optimizes interfacial charge transfer,…

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Percentile: 100%
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Topics & keywords

Topics

Keywords

Bifunctional
Oxygen evolution
Water splitting
Electrolysis of water
Electrochemistry
Heterojunction
Catalysis
Electrolysis

UN Sustainable Development Goals

Clean water and sanitation

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