Journal article

Electronic and Morphological Dual Modulation of Cobalt Carbonate Hydroxides by Mn Doping toward Highly Efficient and Stable Bifunctional Electrocatalysts for Overall Water Splitting

Tang Tang, Wen-Jie Jiang, Shuai Niu, Ning Liu, Hao Luo, Yu-Yun Chen, Shi-Feng Jin, Feng Gao, Li-Jun Wan, Jin-Song Hu

Journal of the American Chemical Society | AMER CHEMICAL SOC | Published : 2017

Abstract

Developing bifunctional efficient and durable non-noble electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is highly desirable and challenging for overall water splitting. Herein, Co-Mn carbonate hydroxide (CoMnCH) nanosheet arrays with controllable morphology and composition were developed on nickel foam (NF) as such a bifunctional electrocatalyst. It is discovered that Mn doping in CoCH can simultaneously modulate the nanosheet morphology to significantly increase the electrochemical active surface area for exposing more accessible active sites and tune the electronic structure of Co center to effectively boost its intrinsic activity. As a result, th..

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University of Melbourne Researchers

Grants

Awarded by National Key Project on Basic Research


Awarded by National Key Research and Development Program of China


Awarded by National Natural Science Foundation of China


Awarded by Strategic Priority Research Program of the Chinese Academy of Sciences


Awarded by Program for New Century Excellent Talents in University


Awarded by National Postdoctoral Program for Innovative Talents


Funding Acknowledgements

We acknowledge the financial support from the National Key Project on Basic Research (2015CB932302), the National Key Research and Development Program of China (2016YFB0101202), the National Natural Science Foundation of China (91645123, 21575004, and 21573249), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB12020100) Program for New Century Excellent Talents in University (NCET-12-0599), National Postdoctoral Program for Innovative Talents (BX201700250), the project sponsored by SRF for ROCS, SEM, and the Foundation for Innovation Team of Bioanalytical Chemistry of Anhui Province. We also thank the following staff scientists at the Center for Analysis and Testing, ICCAS for their help: Dr. Zhi Juan Zhao and Xiao-Yu Zhang for XPS analysis; Yang Sun for XRD analysis; and Dr. Bo Guan, Ji-Ling Yue, and Li-Rong Liang for SEM and TEM supports.