电解水析氢技术因反应高效、简单易控、无污染等特点而逐渐成为研究热点。高效析氢催化电极的研究是该技术发展的关键。针对现有过渡金属硫化物析氢电极存在过电位大、导电性和稳定性差等问题，本申请项目提出构建一体化镍基金属碲化物析氢电极，通过条件温和的刻蚀技术（化学刻蚀和电化学刻蚀）调控Ni基底表面产生的缺陷、开放结构以获得高效传输通道，利用溶剂热还原调控金属碲化物催化剂的碲化程度和晶体结构，以吸附H结合能为导向，改变其表面电荷状态、能带结构、费米能级等，使表面电子结构发生改变的催化活性中心极大程度的暴露在固/液界面上，从而达到提高催化剂的析氢固有催化活性和增加催化剂活性位点利用率的目的，实现高效析氢。

Electrochemically splitting water into hydrogen by renewable energy has attracted much attention due to its high efficiency, easy operation and no secondary pollution. The key of the technology is to design high performance catalysts. Based on the transition metal dichalcogenides catalysts with problems of high overpotentials, poor electrical conductivity and stability, in this project, we plan to design an integrated electrode with high activity and long-term stability via the chemical etching/electrochemical process/ solvothermal methods. The surface defect and open structure of integrated electrodes are well controlled. By regulating the degree of telluride and crystal structure of the catalysts, a relatively moderate hydrogen-metal binding energy will be obtained, which is beneficial for improving the hydrogen evolution activity. Moreover, the integration electrode can remarkably maximize the number of exposed active sites and electric conductivity to be utilized. Therefore, the obtained catalysts will display high performance during the reaction.