Built‐in Electric Field in Ru/CoP Bifunctional Electrocatalyst Enhances Hydrazine‐Assisted Water Splitting
Abstract
Abstract Electrocatalytic hydrazine‐assisted water splitting, incorporating the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR), offers a promising avenue for hydrogen production. Herein, a Ru/CoP heterostructure is introduced, which enhances bifunctional catalytic activity through interfacial interaction induced by the built‐in electric field between Ru nanoparticles and CoP nanosheets. This interaction optimizes the adsorption of intermediates and facilitates improved HER performances by weakening the strong adsorption of active hydrogen species (*H) on Ru and enhancing *H coverage on CoP through hydrogen spillover. Additionally, this electron interaction promotes the adsorption of N 2 H 4 and its subsequent dehydrogenation, vital for HzOR activity. The heterostructure's significant reduction in required potentials for both reactions underscores its efficiency and potential economic benefits over traditional systems. Furthermore, the study validates the feasibility of using this approach for practical applications in sustainable hydrogen production, emphasizing its lower operational costs and enhanced catalytic stability and activity. This work not only showcases the practical applications of Ru/CoP but also underscores the broader applicability of heterostructure strategy in designing efficient bifunctional electrocatalysts.
Article Details
Authors (14)
Kang Ji
Shiyu Wang
Shuyun Yao
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Yingjie Ji
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Jingxian Li
Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo and Biosensing, College of Material Science and Engineering, College of Chemistry and Chemical Engineering
Xiaojun Wang
National Laboratory of Solid State Microstructures, School of Sustainable Energy and Resources, Jiangsu Key Laboratory of Artificial Functional Materials, Collaborative Innovation Center of Advanced Microstructures, Frontiers Science Center for Critical Earth Material Cycling
Lanlan Shi
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Guixi Wang
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Weikun Ren
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Jun Wang
Feike Zhang
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China
Jiangzhou Xie
School of Mechanical and Manufacturing Engineering University of New South Wales Sydney New South Wales 2052 Australia
Zhiyu Yang
Yi‐Ming Yan
State Key Laboratory of Organic‐Inorganic Composites Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 P. R. China