Inverted-design for highly-active hydrogen evolution electrocatalyst of MoS2@Ni3S2 core-shell via unlocking the potential of Mo--颗粒学报PARTICUOLOGY

Song, C., Liu, Y., Huang, C., Liu, M., Yue, N., Zhang, Z., . . . Zheng, W. (2023). Inverted-design for highly-active hydrogen evolution electrocatalyst of MoS2@Ni3S2 core-shell via unlocking the potential of Mo. Particuology, 77, 56-61. https://doi.org/10.1016/j.partic.2022.08.011

Inverted-design for highly-active hydrogen evolution electrocatalyst of MoS₂@Ni₃S₂ core-shell via unlocking the potential of Mo

Chao Song, Yuhua Liu, Chengxiang Huang, Miao Liu, Nailin Yue, Zunhao Zhang, Zizhun Wang, Xu Zou ^*, Wei Zhang ^*, Weitao Zheng

Key Laboratory of Automobile Materials MOE, School of Materials Science & Engineering, Jilin Provincial International Cooperation Key Laboratory of High-Efficiency Clean Energy Materials, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, 130012, China

10.1016/j.partic.2022.08.011

Volume 77, June 2023, Pages 56-61

Received 4 July 2022, Revised 8 August 2022, Accepted 11 August 2022, Available online 30 August 2022, Version of Record 2 December 2022.

E-mail: zoux@jlu.edu.cn; weizhang@jlu.edu.cn

Highlights

• We unlock the potential of Mo sites and prepare MoS₂@Ni₃S₂/NF catalysts via inverted-design.

• MoS₂@Ni₃S₂/NF exhibits outstanding HER performance, especially at high current density.

• Its high activity is due to abundant active sites and enhanced intrinsic activity.

Abstract

Through inverted-design rather than modifying the generally-assumed S active sites in popular MoS₂, we unlock the potential of Mo sites and successfully prepared novel MoS₂@Ni₃S₂/NF core-shell nanospheres as a catalyst for the high-performance hydrogen evolution reaction (HER). The ΔG_H at the Mo site is optimized via Ni₃S₂ to achieve excellent HER activity. At low current densities, it has similar activity to the Pt/C. However, its performance is better than Pt/C at high density. Moreover, our catalyst shows a considerable stability at a variety of current densities for 50 h, promising to substitute noble metal catalysts in application of commercial alkaline electrocatalysts.

Graphical abstract

Keywords

Inverted design; Hydrogen evolution reaction; Electrocatalyst; Electronic interaction; MoS₂@Ni₃S₂/NF

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