Direct synthesis of PtNi coated with Ni3B for efficient electrochemical hydrogen evolution from seawater
Xiong Yang1, Yu-Xuan Xiao2, Fei Yu1
1State Key Laboratory of Silicate Materials for Architectures & State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & School of Chemistry, Chemical Engineering and Life Sciences & Laoshan Laboratory & School of Materials Science and Engineering & International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China. xyyang@whut.edu.cn.
Abstract:
The design of a protective electron-rich surface is an ideal route to enhance the performance of catalysts. Due to the higher work function of Ni3B, facile-directed electron transport occurs from PtNi to Ni3B to enrich electron density on the surface of the Ni3B shell. This process increases hydrogen adsorption-desorption kinetics and mitigates Cl- corrosion.


