Rare Metals Journal Cover Design Service （HER）

Rare Metals

18 May 2021

Formation of hierarchical Co-decorated Mo₂C hollow spheres for enhanced hydrogen evolution

Yi-Zhong Wang^†, Yi-Ming Ding^†, Cai-Hong Zhang, Bo-Wen Xue,Nian-Wu Li, Le Yu^*

10.1007/s12598-021-01765-6

Herein, we report an effective multi-step strategy to prepare hierarchical Co-decorated Mo2C hollow spheres (CMCHSs) as electrocatalyst for HER. To be specific, the preparation process involves a metal-chelated polymerization and a subsequent surface modulation process. Owing to the unique hollow structure and incorporation of Co species, the as-prepared CMCHSs demonstrate largely enhanced HER performance with a low overpotential of 139 mV at the current density of 10 mA·cm−2 and good cycling durability in acid. The present research work highlights a new feasible strategy for the design of HER electrocatalyst via hollow designs and surface engineering.