TY  - JOUR
AU  - Zou, Haoran
AU  - Zhang, Wen
AU  - Chen, Fangze
AU  - Zhang, Chao
AU  - Zhang, Jinyong
AU  - Ren, Lin
AU  - Wang, Weimin
AU  - Zhang, Fan
AU  - Fu, Zhengyi
PY  - 2026
TI  - Hydrothermal synthesis of MoSe2/Ni3Se4 heterostructures anchored on high-entropy M4C3Tx (M = Ti, V, Mo, Nb, Ta) with superior hydrogen evolution reaction activity
JO  - Journal of Advanced Ceramics
SN  - 2226-4108
SP  - 9221235
VL  - 15
IS  - 2
AB  - 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, MoSe2 and Ni3Se4 nanosheets were successfully composited on high-entropy M4C3Tx 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 MoSe2 and Ni3Se4 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, MoSe2/Ni3Se4/M4C3Tx 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.
UR  - https://doi.org/10.26599/JAC.2025.9221235
DO  - 10.26599/JAC.2025.9221235