摘要
Rational design and construction of low-cost overall water splitting catalysts with high efficiency is of great significance to the green chemistry industry. Herein, a CoFeP/NC@CoP/Ni2P heterostructure is constructed via phosphiding CoFe-Prussian blue analogue@NiCo-precursor (CoFe-PBA@NiCo-Pre). This novel synthesis strategy can be used to prepare heterostructures, which significantly promote charge transfer due to a moderately regulated electronic structure and a strongly coupled heterointerface for electrocatalysis. Notably, the as-prepared CoFeP/NC@CoP/Ni2P heterostructure catalyst shows outstanding performances with small overpotentials of 256 mV for the oxygen evolution reaction and 177 mV for the hydrogen evolution reaction at 10 mA cm−2, respectively. Besides, when CoFeP/NC@CoP/Ni2P is used as anode and cathode catalysts, the cell voltage is only 1.66 V at 50 mA cm−2. This work provides a novel perspective for the design and construction of heterostructure electrocatalysts for water splitting.
源语言 | 英语 |
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页(从-至) | 1226-1233 |
页数 | 8 |
期刊 | New Journal of Chemistry |
卷 | 47 |
期 | 3 |
DOI | |
出版状态 | 已出版 - 29 11月 2022 |