Journal article

Autogenous Growth of Hierarchical NiFe(OH)(x)/FeS Nanosheet-On-Microsheet Arrays for Synergistically Enhanced High-Output Water Oxidation

Shuai Niu, Wen-Jie Jiang, Tang Tang, Lu-Pan Yuan, Hao Luo, Jin-Song Hu

ADVANCED FUNCTIONAL MATERIALS | WILEY-V C H VERLAG GMBH | Published : 2019

Abstract

Practical electrochemical water splitting requires cost-effective electrodes capable of steadily working at high output, leading to the challenges for efficient and stable electrodes for the oxygen evolution reaction (OER). Herein, by simply using conductive FeS microsheet arrays vertically pre-grown on iron foam (FeS/IF) as both substrate and source to in situ form vertically aligned NiFe(OH)x nanosheets arrays, a hierarchical electrode with a nano/micro sheet-on-sheet structure (NiFe(OH)x/FeS/IF) can be readily achieved to meet the requirements. Such hierarchical electrode architecture with a superhydrophilic surface also allows for prompt gas release even at high output. As a result, NiFe..

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University of Melbourne Researchers

Grants

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 National Postdoctoral Program for Innovative Talents


Awarded by China Postdoctoral Science Foundation


Funding Acknowledgements

S.N. and W.-J.J. contributed equally to this work. The authors acknowledge the financial support from the National Key Research and Development Program of China (2016YFB0101202), the National Natural Science Foundation of China (21773263, 91645123, and 21573249), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB12020100), the National Postdoctoral Program for Innovative Talents (BX2001700250), and the project funded by China Postdoctoral Science Foundation (2017M620912). The authors thank Dr. Fen Liu, Dr. Zhijuan Zhao, and Xiaoyu Zhang for their help in XPS analysis; Yang Sun for XRD analysis; and Dr. Bo Guan and Ji-Ling Yue for SEM experiments.