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首页> 外文期刊>RSC Advances >Exploration of the electrochemical mechanism of ultrasmall multiple phases molybdenum carbides nanocrystals for hydrogen evolution reaction
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Exploration of the electrochemical mechanism of ultrasmall multiple phases molybdenum carbides nanocrystals for hydrogen evolution reaction

机译：超大阶段碳化钼碳化物纳米晶体氢化反应的电化学机理探索

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Sustainable and affordable hydrogen production through splitting of water, an essential step towards renewable and clean energy storage, calls for efficient non-precious-metal catalysts to make the process economically viable. Ultrasmall multiple phases molybdenum carbides nanocrystals (2.5 nm for MoC and 5.0 nm for Mo _(2) C) on graphene support were synthesized by a simple in situ method. Both molybdenum carbides on graphene hybrid materials, the MoC-G and Mo _(2) C-G, show extraordinary high activity for hydrogen evolution reaction (HER) in acid media. The reaction kinetics of the MoC-G and Mo _(2) C-G were revealed. The X-ray photoelectron spectroscopy (XPS) and X-ray absorption fine structure (XAFS) were conducted to study the electronic nature of MoC-G and Mo _(2) C-G electrocatalysts to explore the electrochemical mechanism of ultrasmall multiple phases molybdenum carbides nanocrystals on graphene for hydrogen evolution reaction.
机译：可持续和实惠的氢气通过分裂水，是可再生和清洁能量储存的重要步骤，呼吁高效的非珍贵金属催化剂，使过程经济上可行。通过简单的原位方法合成超超容量碳化钼碳化物纳米碳化物纳米晶体（MOC和5.0nm）石墨烯载体上的Mo _（2）c）。石墨烯杂交材料的钼碳化物，MoC-G和Mo _（2）C-g，对酸性介质中的氢进化反应（她）表示非凡的高活性。揭示了MOC-G和MO _（2）C-G的反应动力学。进行X射线光电子能谱（XPS）和X射线吸收细结构（XAFS）以研究MOC-G和MO _（2）CG电催化剂的电子性质，以探讨超超多相钼碳化物纳米晶体的电化学机理在石墨烯上进行氢进化反应。

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