Recent progress in NiMo-based amorphous alloys for electrocatalytic hydrogen evolution reaction
Sixuan Zhang, Jinzhao Huang, Dianjin Ding, Jun Tang, Xiaolong Deng
Abstract
Electrocatalytic water splitting to produce green hydrogen is one of the important ways to develop sustainable energy systems. Highly active, low-cost amorphous alloys composed of transition metals Ni and Mo are widely regarded as efficient catalysts for hydrogen production. The catalysts represented by nickel−molybdenum (NiMo)-based amorphous alloys are focused on, the synthesis methods of amorphous alloys and their applications in the field of catalysis are summarized, and the application of NiMo alloys, NiMo-based medium entropy alloys, and NiMo-based high-entropy alloys are described respectively in electrocatalytic hydrogen evolution reaction (HER). In a word, NiMo-based amorphous alloy catalysts exhibit excellent hydrogen evolution performance by solving key scientific and technical problems with a reasonable function-oriented design. Finally, five issues in terms of preparation technology, component regulation, nanoscale, electronic structure and catalytic mechanism are proposed. This gives a clue for the design, preparation, structure−activity relationship and catalytic mechanism of catalysts.