TY  - JOUR
AU  - XU, Dengji
AU  - LI, Xinran
AU  - TIAN, Di
AU  - WANG, Hui
AU  - QU, Zhiguo
PY  - 2026
TI  - Bifunctional electrocatalyst based on Ni3Se2/NiSe@NF: Fabrication and performance in electrocatalytic hydrogen and oxygen evolution
JO  - Journal of Northwest University (Natural Science Edition)
SN  - 1000-274X
SP  - 57
EP  - 67
VL  - 56
IS  - 1
AB  - In order to solve the problems of high cost and low electrolytic efficiency of traditional catalysts and realize the development of large-scale green hydrogen production technology, an interfacial catalyst based on transition metal was constructed by structural design and synthesis optimization in this study. The Ni3Se2/NiSe@NF heterojunction bifunctional electrocatalyst with interface structure was prepared on a nickel foam (NF) substrate by a two-step hydrothermal method. The strong charge transfer at the heterogeneous interface of Ni3Se2/NiSe@NF effectively optimizes the electronic structure of Ni3Se2/NiSe@NF compared with the single interface (Ni3Se2@NF and NiSe@NF), thus increasing the activities of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The prepared Ni3Se2/NiSe@NF has an overpotential of 71 and 207 mV (10 mA·cm-2) at 1 mol/L KOH, respectively, and has impressive stability (no significant degradation within 500 h). In addition, when the current density is 10 mA·cm-2, the current of the monolithic water decomposition electrolyzer with Ni3Se2/NiSe@NF as anode and cathode can be reduced to 1.52 V. Therefore, this study provides a new idea for the development of low-cost and high-stability catalysts for water electrolysis, which is expected to accelerate the integration of green hydrogen preparation and renewable energy systems, and help realize the goal of “dual-carbon”.
UR  - https://doi.org/10.16152/j.cnki.xdxbzr.2026-01-006
DO  - 10.16152/j.cnki.xdxbzr.2026-01-006