Ultra-small Ni(HCO3)2 as a water dissociation promoter boosting the alkaline hydrogen electrocatalysis performance of MoS2

Nan Zhang; Ying Gao; Chunru Wang; Feng Zhao; Zhiyao Duan; Jian Liu; Ying Yu

doi:10.1039/D0CC04781C

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Ultra-small Ni(HCO₃)₂ as a water dissociation promoter boosting the alkaline hydrogen electrocatalysis performance of MoS₂†

Nan Zhang,

*^a Ying Gao,^a Chunru Wang,^a Feng Zhao,^a Zhiyao Duan,*^b Jian Liu

^a and Ying Yu^a

Author affiliations

* Corresponding authors

^a State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing, China
E-mail: zhangnan@cup.edu.cn

^b Department of Chemistry and the Oden Institute for Computational Engineering and Science, the University of Texas at Austin, Texas 78712-0165, USA
E-mail: zduan@utexas.edu

Abstract

Ni(HCO₃)₂ working for the first time as an adsorption site for hydroxyl species for a MoS₂-based catalyst has efficiently facilitated the alkaline HER kinetics, as demonstrated by experimental and DFT calculation results. The ultra-small Ni(HCO₃)₂ is vital to achieving excellent HER activity of Ni(HCO₃)₂/MoS₂/CC in alkaline media, which transcended the performance of Pt/C at high current density.

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Article information

DOI: https://doi.org/10.1039/D0CC04781C
Article type: Communication
Submitted: 10 Jul 2020
Accepted: 26 Aug 2020
First published: 28 Aug 2020

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Chem. Commun., 2020,56, 12065-12068

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Ultra-small Ni(HCO₃)₂ as a water dissociation promoter boosting the alkaline hydrogen electrocatalysis performance of MoS₂

N. Zhang, Y. Gao, C. Wang, F. Zhao, Z. Duan, J. Liu and Y. Yu, Chem. Commun., 2020, 56, 12065 DOI: 10.1039/D0CC04781C

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