期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 46, 期 38, 页码 19789-19801出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.03.120
关键词
Cu-Co-P catalyst; Electrodeposition; Hydrogen evolution reaction; Anion exchange membrane water electrolyzer
资金
- Chung Ang University
- Korea Electric Power Corporation [R18XA0627]
A facile and rapid fabrication method of Cu-Co-P catalyst on a carbon paper substrate using electrodeposition was reported in this study. By optimizing the deposition conditions and incorporating Cu, the performance towards hydrogen evolution reaction in water electrolysis was significantly improved.
To solve the issues of energy shortage and environmental pollution, it is essential to develop highly effective catalysts for hydrogen evolution reaction (HER) in water electrolysis. Herein, we report a facile and rapid fabrication of a Cu-Co-P catalyst on a carbon paper (CP) substrate using electrodeposition. First, the deposition conditions for Co-P/CP were optimized. The prepared Co-P consisted of numerous spheres and exhibited acceptable catalytic activity towards HER in an alkaline medium with an overpotential of 72 mV at current density of -10 mA/cm(2). Further performance enhancement was achieved by the incorporation of Cu to modify the electronic structure of the Co-P catalyst. In a half cell test, the optimized Cu-Co-P/CP exhibits remarkable performance, achieving -10 mA/cm(2) at an overpotential of 59 mV, and the Tafel slope is 38 mV/dec. In a single-cell test, an anion exchange membrane water electrolyzer with a Cu-Co-P/CP cathode and commercial IrO2/CP anode exhibited high current density of 0.70 A/cm(2) at 1.9 V-cell. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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