Regulating the charge diffusion of two-dimensional cobalt-iron hydroxide/graphene composites for high-rate water oxidation
Tang Tang, Wen-Jie Jiang, Lu-Pan Yuan, Shuai Niu, Jin-Song Hu, Li-jun Wan
Journal of Materials Chemistry A | ROYAL SOC CHEMISTRY | Published : 2020
The importance of charge diffusion in electrocatalysts is shown by regulating the thickness of CoFe hydroxide nanosheets on graphene. The few-layer nanosheets allow effective charge diffusion, enabling a 2000 mA cm−2 output at only 1.507 V cost in near-industrial conditions.
Awarded by National Key Research and Development Program of China
Awarded by National Natural Science Foundation of China
We acknowledge the financial support from the National Key Research and Development Program of China (2016YFB0101202), the National Natural Science Foundation of China (21773263, 21902162, 21972147, and 21703257). We also thank the following staff scientists at the Centre for Analysis and Testing, ICCAS for their help: Y. Sun for XRD analysis, Dr Z.-J. Zhao and X.-Y. Zhang for XPS analysis, Dr B. Guan, and J.-L. Yue for SEM and TEM supports.