Citation: Jin Ling, Pang Huan. CoP@SiO₂nanoreactors: A core-shell structure for efficient electrocatalytic oxygen evolution reaction[J]. Chinese Chemical Letters, ;2020, 31(9): 2300-2304. doi: 10.1016/j.cclet.2020.03.041 shu

CoP@SiO₂nanoreactors: A core-shell structure for efficient electrocatalytic oxygen evolution reaction

Jin Ling ,
Pang Huan ^*,

School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China

huanpangchem@hotmail.com,panghuan@yzu.edu.cn

Received Date: 20 February 2020
Revised Date: 12 March 2020
Accepted Date: 13 March 2020
Available Online: 19 March 2020

Figures(4)

Metallic phosphides as a crucial class of metal-like compounds show high electric conductivity and electrochemical properties. It is of significant benefit to understanding the relationship between the electrocatalytic performance and phosphating degree of precursors. In this work, using Co₃O₄@SiO₂ as precursor, core-shell structured CoP@SiO₂ nanoreactors with outstanding oxygen evolution reaction performance were synthesized through a facile calcination method. The electrocatalytic performance of CoP@SiO₂ modified electrode that treated with 500 mg NaH₂PO₂ was greatly enhanced. The obtained product displays a low overpotential of 280 mV at a current density of 10 mA/cm² and a Tafel value 89 mV/dec in alkaline conditions. The easy available CoP@SiO₂ with outstanding catalytic performance and stability possesses huge potential in future electrochemical applications.
- Core-shell structure,
- Phosphating,
- Nanoreactors,
- Oxygen evolution reaction,
- Silicon shell
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CoP@SiO₂nanoreactors: A core-shell structure for efficient electrocatalytic oxygen evolution reaction