Hydrothermal synthesis of MoSe_(2)/Ni_(3)Se_(4) heterostructures anchored on high-entropy M_(4)C_(3)Tx(M=Ti,V,Mo,Nb,Ta)with superior hydrogen evolution reaction activityOA
Developing hydrogen evolution reaction(HER)electrocatalysts with high activity in both acidic and alkaline media is of great significance for adapting to diverse electrolytic environments.In this study,MoSe_(2) and Ni_(3)Se_(4) nanosheets were successfully composited on high-entropy M_(4)C_(3)Tx MXene(M=Ti,V,Mo,Nb,Ta)via a hydrothermal method,constructing a novel heterostructured catalyst.This design leverages the excellent conductivity and multielement synergistic effect of high-entropy MXenes,which not only facilitates electron transport but also provides a robust platform for the uniform distribution of MoSe_(2) and Ni_(3)Se_(4) nanosheets,thereby exposing abundant active sites.Electrochemical tests indicate that the catalyst exhibits excellent HER performance in both 0.5 M H2SO4 and 1.0 M KOH electrolytes.Specifically,under acidic conditions,MoSe_(2)/Ni_(3)Se_(4)/M_(4)C_(3)Tx shows an overpotential of only 67 mV at a current density of 10 mA·cm^(-2) with a Tafel slope of 68.7 mV·dec^(-1),while under alkaline conditions,the overpotential at 10 mA·cm^(-2) is 73 mV with a Tafel slope of 77.8 mV·dec^(-1).Moreover,the catalyst demonstrates excellent long-term stability in both acidic and alkaline media.This work provides a new strategy for designing efficient and stable HER catalysts suitable for harsh acid-base environments.
Haoran Zou;Wen Zhang;Fangze Chen;Chao Zhang;Jinyong Zhang;Lin Ren;Weimin Wang;Fan Zhang;Zhengyi Fu
Hubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaHubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaHubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaHubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaState Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaHubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,ChinaHubei Longzhong Laboratory,Wuhan University of Technology Xiangyang Demonstration Zone,Xiangyang 441000,China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology,Wuhan 430070,China
化学化工
high-entropy MXenehydrogen evolution reaction(HER)heterostructure electrocatalystMoSe_(2)/Ni_(3)Se_(4)/M_(4)C_(3)Tx
《Journal of Advanced Ceramics》 2026 (2)
P.157-170,14
supported by the Natural Science Foundation of Hubei Province(No.2025AFD061)the National Natural Science Foundation of China(Nos.52372067,52402074,92163208,and 52494933).
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