Three-Dimensional Porous VN Octahedron Catalyst with High Electrocatalytic Efficiency toward Hydrogen Evolution Reaction

Authors

Can YIN, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;
Wei-wei FU, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;
Ling FANG, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;
Shi-li YOU, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;
Hui-juan ZHANG, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;
Yu WANG, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, The School of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044，China;Follow

Corresponding Author

Yu WANG(wangy@cqu.edu.cn)

Abstract

With the rapid development of China’s economy, the demand for energy is increasing, and environmental problems are becoming more and more serious. The development and utilization of highly-clean new energy fuel can effectively alleviate the energy crisis and environmental pollution. Nowadays, exploring high-efficiency, environment-friendly and low-cost catalysts remains the focus of research in the hydrogen evolution reaction (HER). In this research, firstly, we proposed a three-dimensional porous vanadium nitride (VN) with octahedral structure, which was prepared by a calcination treatment method. The VN catalyst showed a good electrocatalytic activity toward HER, involving a small overpotential of 94.0 mV at -10 mA·cm^-2, a corresponding low Tafel slope of 54.6 mV·dec^-1 and a great stability in an acidic medium for 80 h, which is much better than many reported nitrides. Moreover, the outstanding catalytic performance of VN toward HER could be ascribed to its unique composition nature and numerous active sites.

Graphical Abstract

Keywords

nitrides, porous catalyst, active sites, hydrogen evolution reaction

DOI Link

https://doi.org/10.13208/j.electrochem.181142

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Publication Date

2019-10-28

Online Available Date

2019-10-28

Revised Date

2019-04-22

Received Date

2018-11-12

Recommended Citation

Can YIN, Wei-wei FU, Ling FANG, Shi-li YOU, Hui-juan ZHANG, Yu WANG. Three-Dimensional Porous VN Octahedron Catalyst with High Electrocatalytic Efficiency toward Hydrogen Evolution Reaction[J]. Journal of Electrochemistry, 2019 , 25(5): 579-588.
DOI: 10.13208/j.electrochem.181142
Available at: https://jelectrochem.xmu.edu.cn/journal/vol25/iss5/6