【摘 要】
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The growing energy concern all over the world has recognized hydrogen energy as the most promising renewable energy sources.Recently,electrocatalytic hydrogen e
【机 构】
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State Key Laboratory of Organic-Inorganic Composites,Beijing Key Laboratory of Electrochemical Proce
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The growing energy concern all over the world has recognized hydrogen energy as the most promising renewable energy sources.Recently,electrocatalytic hydrogen evolution reaction(HER)by water split-ting has been extensively studied with a focus on developing efficient electrocatalysts that can afford HER at overpotential with minimum power consumption.The two-dimensional transition metal carbides and nitride,also known as MXenes,are becoming the rising star in developing efficient electrocatalysts for HER,owing to their integrated chemical and electronic properties,e.g.,metallic conductivity,variety of redox-active transition metals,high hydrophilicity,and tunable surface functionalities.In this review,the recent progress about the fundamental understanding and materials engineering of MXenes-based electrocatalysts is summarized in concern with two aspects:i)the regulation of the intrinsic properties of MXenes,which include the composition,surface functionality,and defects;and ii)MXenes-based com-posites for HER process.In the end,we summarize the present challenges concerning the efficiency of MXenes-based HER electrocatalysts and propose the directions of future research efforts.
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