Abstract Transition metal sulfides/selenides are promising choice for electrocatalytic water splitting. However, the relatively low conductivity and utilization of active sites severely hinder its commercial application for H2 and O2 generation. Therefore, carbon substrates have been used to construct carbon–based transition metal sulfides/selenides for improving the dispersion and charge transfer rate of active sites. Herein, the research progress and all kinds of carbon–based transition metal sulfides/selenides have been systematically summarized and discussed. Moreover, various of strategies for boosting the properties of transition metal sulfides, selenides and sulfoselenides such as carbon substrate design, nanostructure construction, ion doping and surface engineering in terms of active sites are introduced in detail. Finally, this review briefly summarizes the challenges and research direction of carbon–based transition metal sulfur selenides for electrocatalytic water splitting, providing new inspiration for the rational design of high–performance catalysts.

中文翻译：

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用于电催化水分解的碳基过渡金属硫化物/硒化物纳米结构

摘要 过渡金属硫化物/硒化物是电催化水分解的有前途的选择。然而，相对较低的导电率和活性位点的利用率严重阻碍了其在 H2 和 O2 生成方面的商业应用。因此，碳底物已被用于构建碳基过渡金属硫化物/硒化物，以提高活性位点的分散性和电荷转移速率。本文对碳基过渡金属硫化物/硒化物的研究进展及各类过渡金属硫化物/硒化物进行了系统的总结和讨论。此外，详细介绍了各种提高过渡金属硫化物、硒化物和硫硒化物性能的策略，如碳基底设计、纳米结构构建、离子掺杂和活性位点表面工程。最后，