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Ultra-small Ni(HCO3)2 as a water dissociation promoter boosting the alkaline hydrogen electrocatalysis performance of
Nan Zhang1, Ying Gao, Chunru Wang
1State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing, 102249, China. zhangnan@cup.edu.cn.
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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