articleNature CommunicationsJan 6, 2025GOLD OA

Termination-acidity tailoring of molybdenum carbides for alkaline hydrogen evolution reaction

Chinese Academy of Sciences · Suzhou Institute of Nano-tech and Nano-bionics · +3 more institutions

PubMed
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Abstract

Transition-metal carbides have been advocated as the promising alternatives to noble-metal platinum-based catalysts in electrocatalytic hydrogen evolution reaction over half a century. However, the effectiveness of transition-metal carbides catalyzing hydrogen evolution in high-pH electrolyte is severely compromised due to the lowered proton activity and intractable alkaline-leaching issue of transition-metal centers. Herein, on the basis of validation of molybdenum-carbide model-catalyst system by taking advantage of surface science techniques, Mo2C micro-size spheres terminated by Al3+ doped MoO2 layer exhibit a notable performance of alkaline hydrogen evolution with a near-zero onset-potential, a low…

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