Electrodeposited Co-W-P ternary catalyst for hydrogen evolution reaction

Shimin Li; Lei Bai; Haibiao Shi; Tianjiao Wang; Xianfeng Hao; Zhipeng Ma; Ling Chen; Xiujuan Qin; Guangjie Shao

doi:10.1088/1361-6528/ac1c25

Electrodeposited Co-W-P ternary catalyst for hydrogen evolution reaction

Nanotechnology. 2021 Sep 29;32(50). doi: 10.1088/1361-6528/ac1c25.

Authors

Shimin Li¹, Lei Bai¹, Haibiao Shi¹, Tianjiao Wang¹, Xianfeng Hao¹, Zhipeng Ma¹, Ling Chen¹, Xiujuan Qin¹, Guangjie Shao¹

Affiliation

¹ State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, People's Republic of China.

PMID: 34375970
DOI: 10.1088/1361-6528/ac1c25

Abstract

In order to reduce the overpotential of hydrogen evolution reaction (HER), the ternary coating Co-W-P was deposited on the surface of the nickel foam by electrochemical deposition to obtain a highly active electrode. Based on the measured double layer capacitance (C_dl) and HER activity, there is volcanic behavior between the intrinsic activity of Co-W-P and the Co:W ratio in the electrolyte. W and P play different roles in the formation of nanoparticles, and work together to achieve the large electrochemical surface area and excellent activity. When applied to the modification of other catalysts (Ni-P and Fe-P), the higher intrinsic activity was obtained after the introduction of W.

Keywords: Co–W–P; HER; electrocatalysis; electrochemical surface area; electrodeposition; intrinsic activity.