Improved hydrogen evolution performance of Ni-based nanoporous catalyst with Mo and B co-addition

Chongxing Pang; Wence Xu; Yanqin Liang; Zhaoyang Li; Shuilin Wu; Zhenduo Cui; Huaijun Sun; Hui Jiang; Shengli Zhu

doi:10.1016/j.jcis.2023.11.100

Improved hydrogen evolution performance of Ni-based nanoporous catalyst with Mo and B co-addition

J Colloid Interface Sci. 2024 Feb 15:656:262-269. doi: 10.1016/j.jcis.2023.11.100. Epub 2023 Nov 19.

Authors

Chongxing Pang¹, Wence Xu¹, Yanqin Liang², Zhaoyang Li², Shuilin Wu², Zhenduo Cui¹, Huaijun Sun³, Hui Jiang⁴, Shengli Zhu⁵

Affiliations

¹ School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China.
² School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300350, China.
³ Jiyang College of Zhejiang Agriculture and Forestry University, Zhuji 311800, China. Electronic address: 20170025@zafu.edu.cn.
⁴ School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300350, China. Electronic address: h.jiang@tju.edu.cn.
⁵ School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Laboratory of Composite and Functional Materials, Tianjin 300350, China. Electronic address: slzhu@tju.edu.cn.

PMID: 37995396
DOI: 10.1016/j.jcis.2023.11.100

Abstract

The exploration of efficient and stable noble-metal-free electrocatalysts for hydrogen evolution reaction (HER) is of great interest for the development of electrochemical hydrogen production technologies. Herein, nanoporous Ni-based catalyst with Mo and B co-addition (NiMoB) prepared by dealloying is reported as an efficient electrocatalysts for HER. The nanoporous NiMoB achieves an overpotential of 31 mV at 10 mA cm^-2, along with exceptional catalytic stability in alkaline electrolyte. Density functional theory (DFT) calculations reveal that the incorporation of Mo and B can synergistically optimize the electronic structure and regulate the adsorption of HER intermediates on the Ni active site, thus accelerating the HER kinetics. This study provides a new perspective for the development of non-precious Ni-based catalysts towards efficient hydrogen energy conversion.

Keywords: Dealloying; Hydrogen evolution reaction; Nanoporous; Ni-based catalyst; Self-standing.