期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 277, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2021.125419
关键词
Co2P/CoP; HER; Stability
资金
- Postgraduate Research & Practice Innovation Program of Jiangsu Province (China) [CXZZ13_0892, KYLX15-1355]
- National Youth Science Fund Project (China) [31300652, 41706141]
- Campus Students Innovation Project of Jiangsu Province (China) [SD201911641401002]
Durable and low-cost Co2P/CoP was successfully synthesized and exhibited excellent electrocatalytic performance for hydrogen evolution in alkaline media, with a small overpotential and superior stability. The electrocatalytic activity of Co2P/CoP was evaluated by electrochemical tests, showing great potential for practical applications.
Electrochemical water electrolysis is an efficient important way to produce hydrogen. In this work, durable and low-cost Co2P/CoP was synthesized by a facile one-step calcination reaction. Subsequently, Co2P/CoP was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microcopy (TEM), X-ray photoelectron spectra (XPS). To evaluate the electrocatalytic hydrogen evolution activity, Co2P/CoP was measured by electrochemical tests. Co2P/CoP exhibited excellent HER performance with a small overpotential of 196 mV at a current density of 10 mA cm(-2) and a smaller Tafel slope of 53 mV dec(-1) in alkaline media. Moreover, Co2P/CoP exhibited superior stability with long-term operation of 24 h.
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