期刊
CHEMICAL ENGINEERING JOURNAL
卷 428, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.131130
关键词
CoP; FeOOH; Porous nanofiber; Electrocatalyst; Oxygen evolution reaction
资金
- National Natural Science Foundation of China [21875187]
- China Postdoctoral of Science Foundation [2019M653404, 2020T130527]
- Key Laboratory Research Foundation of Education Committee of Shaanxi Province [19JS062]
- Jiangsu Natural Science Youth Fund Project [BK20170928]
FeOOH-decorated CoP porous nanofibers were successfully fabricated via electrospinning, oxidation/phosphorization, and subsequent FeOOH deposition, showing excellent OER activity and stability. This strategy could be extended to fabricate other transition metal phosphide-based hybrid porous nanofibers for advanced electrochemical applications.
The rational design and fabrication of oxygen evolution reaction (OER) electrocatalysts are critical to accelerate the reaction kinetics of the water-splitting process. Herein, FeOOH decorated CoP porous nanofibers were fabricated via electrospinning, oxidation/phosphorization and subsequent deposition of FeOOH. Decorating CoP with FeOOH not only optimized the adsorption ability for oxygen-containing intermediates effectively and facilitated electron transfer but also provided abundant active sites to catalyze OER, resulting in a significant enhancement in the activity. As a result, the optimized CoP/FeOOH hybrid porous nanofibers exhibited excellent OER activity with a low overpotential of 250 mV to offer 10 mA cm-2 and remarkable stability, revealing its potential as a high-performance OER electrocatalyst. The strategy presented in this work can also be used to fabricate other types of transition metal phosphide-based hybrid porous nanofibers for advanced electrochemical applications.
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