Hydrogen as a clean energy become an increasingly important substitute for the fossil fuels that produce serious environmental pollution problem. Transition metal dichalcogenides are a low-cost but high-efficient catalyst for hydrogen evolution reaction by splitting water. Semimetallic (1T${}^{\prime }$) tungsten diterbium (WTe₂) has peculiar properties including high conduction band level and high electrical conduction and so has a potential advantage in the hydrogen evolution catalysis application. Here we report a novel approach to synthesize 1T${}^{\prime }$-WTe${}_2$ nanosheets and their hybrids with RGO. The hydrogen evolution catalysis experiment showed that the synthesized 1T${}^{\prime }$-WTe₂ nanosheets are intensely active. Incorporating RGO resulted in fewer layers nanosheet morphology and the efficient charge transfer at the interface between the 1T${}^{\prime }$-WTe₂ and RGO and thereby dramatically enhancing the catalytic activity and stability. Doping Cu cation enhanced the electrical conduction and so further enhanced the activity and stability.

氢作为一种清洁能源，已成为替代化石燃料的重要替代品，而化石燃料产生了严重的环境污染问题。过渡金属二卤化物是一种低成本但高效的催化剂，可通过分解水进行氢释放反应。半金属（1T${}^{\prime }$钨di（WTe ₂）具有包括高导带能级和高电导率的独特特性，因此在氢析出催化应用中具有潜在的优势。在这里，我们报告了一种合成1T的新颖方法${}^{\prime }$-WTe${}_2$纳米片及其与RGO的混合体。氢析出催化实验表明，合成的1T${}^{\prime }$-WTe ₂纳米片具有强烈的活性。掺入RGO导致更少的纳米片层形貌以及1T之间界面的有效电荷转移${}^{\prime }$-WTe ₂和RGO，从而显着增强催化活性和稳定性。掺杂铜阳离子增强了导电性，因此进一步增强了活性和稳定性。