Phosphorus-doped NiS;electrocatalyst with a hybrid structure for hydrogen evolution

作     者：ZHOU Qi LIU HaoRui JIAO SunZhi FENG ChenChen 

作者机构：State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology College of Mechanical Engineering Longdong University 

出 版 物：《Science China Technological Sciences》 (中国科学:技术科学(英文版))

年 卷 期：2022年

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：supported by the National Natural Science Foundation of China (Grant No. 51661018) 

摘      要：In this article, P-NiS;/Ni;P electrocatalysts were synthesized by dealloying the Ni-Al precursor followed by phosphosulfide treatment. We found that the hybrid structure of P-NiS;/Ni;P provides rich active sites for the surface hydrogen evolution reaction（HER）, and the doping of P enhances the electronic conductivity of electrodes. In particular, the obtained electrode shows a low overpotential of 196 mVat 10 mA cm;and a small Tafel slope of only 110 mV dec;in the HER. Meanwhile, longterm constant current electrolysis test experiments indicate that P-NiS;/Ni;P has good service stability. This research will help to open a new window on the design and fabrication of HER electrocatalysts.