Citation: Zi-Ming SHENG, You-Rong TAO, Lu-Lu XU, Peng YANG, Wen-Xin WANG, Xing-Cai WU. CoFe-P catalyst prepared by a facile electrodeposition for high-efficient oxygen evolution reaction[J]. Chinese Journal of Inorganic Chemistry, ;2023, 39(7): 1325-1337. doi: 10.11862/CJIC.2023.102 shu

CoFe-P catalyst prepared by a facile electrodeposition for high-efficient oxygen evolution reaction

State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Corresponding author: Xing-Cai WU, wuxingca@nju.edu.cn
Received Date: 24 April 2023
Revised Date: 18 May 2023

Figures(6)

The development of low-cost, high-efficiency, and robust electrocatalysts with non-precious metal is the key to realizing large-scale hydrogen production by water electrolysis. Herein, a highly amorphous Co1Fe1-P film composed of ultrathin two-dimensional nanosheets was successfully loaded onto the nickel foam via a facile and reasonable electrodeposition method. Owing to the unique morphology, low-energy barrier provided by highly amorphous structure, optimized electronic structure, and strong synergistic effects of cobalt phosphides and iron phosphides, the as-fabricated Co1Fe1-P/NF electrode exhibited outstanding electrocatalytic performance for oxygen evolution reaction (OER) with the low overpotentials of 274.4 and 329.5 mV at 10 and 100 mA·cm^-2 in 1.0 mol·L^-1 KOH, respectively. The corresponding Tafel slope was 45.3 mV·dec^-1, comparing favorably to that of commercial RuO₂ catalyst. Notably, the 100-hour chronopotentiometry at 10 mA·cm^-2 and 1 000-cycle voltammetry tests for OER with negligible attenuation confirmed the excellent stability and durability of Co1Fe1-P/NF.
- phosphides,
- electrodeposition,
- amorphous structure,
- oxygen evolution reaction
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