Molybdenum carbide (MoC) has emerged as a subject of considerable research interest as an intrinsically Pt-like electronic and cost-effective alternative to platinum-based catalysts for the sustainable hydrogen evolution reaction (HER). However, a high carbonization temperature can easily cause the agglomeration of nanoparticles. Therefore, we employed a zeolitic imidazolate framework (ZIF)-assisted synthesis strategy, obtaining MoC/CN-T nanoparticles by calcining the precursor Mo-ZIF at high temperature and low pressure. Utilizing the carbon defects, nitrogen doping, and nanosized active sites provided by ZIFs, the as-prepared electrocatalyst enables swift catalytic reaction kinetics and superior activity stability. The as-prepared MoC/CN-850 manifests a high HER catalytic activity in acid and alkaline media with a small overpotential of 97 and 117 mV at 10 mA cm, respectively and good stability at the industrial current density above 200 mA cm.
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| http://dx.doi.org/10.1039/d4ra08969c | DOI Listing |
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