Engineering different B doping modes on Ru active sites for efficient alkaline hydrogen evolution

Xuzhuo Sun; Cancan Cao; Yuying Fu; Jing Chen; Bo Li; Liuqing Fan; Jing Yang; Haibo Zhang

doi:10.1039/D3TA05277J

Engineering different B doping modes on Ru active sites for efficient alkaline hydrogen evolution†

Xuzhuo Sun,^a Cancan Cao,^a Yuying Fu,^a Jing Chen,^a Bo Li,*^a Liuqing Fan,^a Jing Yang*^c and Haibo Zhang

*^b

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* Corresponding authors

^a College of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, China
E-mail: haut-libo@haut.edu.cn

^b College of Chemistry and Molecular Sciences, National Demonstration Center for Experimental Chemistry, Wuhan University, Wuhan 430072, China
E-mail: haibozhang1980@gmail.com

^c College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen 518118, China
E-mail: yangjing2@sztu.edu.cn

Abstract

Revealing the inner relationship between different active sites is of great significance to the rational design of highly efficient electrocatalysts for HER. Herein, two doping modes of boron, doping on the surface of Ru (B-Ru/CNT) and into carbon nanotubes (Ru/B-CNT), have been undertaken by using closo-[B₁₂H₁₂]²⁻ as a B precursor through in situ reduction and calcination. According to experimental and DFT calculation results, the two B doping methods can both help reduce the electron density of Ru, which favors an enhancement in HER performance. More importantly, B doped into supports can further improve charge transfer efficiency. As a result, Ru/B-CNT exhibits an impressive HER performance (η₁₀ = 15 mV) with fast reaction kinetics, as well as outstanding stability, which is much higher than those of undoped and surface-doped Ru-based catalysts.

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DOI: https://doi.org/10.1039/D3TA05277J
Article type: Paper
Submitted: 01 Sep 2023
Accepted: 10 Oct 2023
First published: 10 Oct 2023

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J. Mater. Chem. A, 2023,11, 23370-23375

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Engineering different B doping modes on Ru active sites for efficient alkaline hydrogen evolution

X. Sun, C. Cao, Y. Fu, J. Chen, B. Li, L. Fan, J. Yang and H. Zhang, J. Mater. Chem. A, 2023, 11, 23370 DOI: 10.1039/D3TA05277J

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Journal of Materials Chemistry A

Engineering different B doping modes on Ru active sites for efficient alkaline hydrogen evolution†

Abstract

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Engineering different B doping modes on Ru active sites for efficient alkaline hydrogen evolution

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