Journal article

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

Abstract

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.

University of Melbourne Researchers

Grants

Awarded by National Key Research and Development Program of China


Awarded by National Natural Science Foundation of China


Funding Acknowledgements

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.