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Abstract Water electrolysis has been considered as a sustainable way for producing renewable energy of hydrogen. However, this process requires a low‐cost and high‐efficient hydrogen evolution reaction (HER) catalyst to improve the overall reaction efficiency. Molybdenum (Mo)‐based electrocatalysts are regarded as the promising candidates to replace the benchmark but expensive Pt‐based HER catalysts, due to their high activity and stability in a wide pH range. In this review, we present a comprehensive and critical summary on the recent progress in the Mo‐based electrodes for HER, including molybdenum alloys, molybdenum sulfides, molybdenum selenides, molybdenum carbides, molybdenum phosphides, molybdenum borides, molybdenum nitrides, and molybdenum oxides. Particular attention is mainly focused on the synthetic methods of Mo‐based materials, the strategies for increasing the catalytic activity, and the relationship between structure/composition and electrocatalytic performance. Finally, the future development and perspectives of Mo‐based electrocatalysts toward high HER performance are proposed.
Hua et al. (Wed,) studied this question.