Effect of urea and ammonium fluoride ratio on CuCo2S4/NF as a highly efficient HER catalyst

Yifei Di; Rongda Zhao; Jun Xiang; Xiangsen Meng; Fufa Wu; Jing Li

doi:10.1039/d3ra05496a

Effect of urea and ammonium fluoride ratio on CuCo₂S₄/NF as a highly efficient HER catalyst

RSC Adv. 2023 Oct 2;13(41):28713-28728. doi: 10.1039/d3ra05496a. eCollection 2023 Sep 26.

Authors

Yifei Di¹, Rongda Zhao¹, Jun Xiang¹, Xiangsen Meng¹, Fufa Wu¹, Jing Li²

Affiliations

¹ School of Materials Science and Engineering, Liaoning University of Technology Jinzhou 121001 China xiangj@lnut.edu.cn ffwu@lnut.edu.cn +86-416-4199650 +86-416-4199650.
² Foshan Graduate School of Innovation, Northeastern University Foshan 528311 China.

Abstract

CuCo₂S₄ as a spinel-structured transition metal sulfide is a highly effective HER catalyst due to its excellent endurance, low overpotential, and low Tafel slope. In this work, the CuCo₂S₄/Ni foam (NF) catalysts with various morphologies have been successfully synthesized by controlling the ratio of urea and ammonium fluoride (NH₄F) based on the hydrothermal method. Urea and NH₄F ratio exhibit a great influence on the microstructure and the HER catalytic performance of CuCo₂S₄/NF catalysts is discussed in detail.