A silver catalyst with a high-energy surface prepared by plasma spraying for the hydrogen evolution reaction.
作者信息
Bai Yu-Yao, Kang Wen-Jing, Xi Cong, Yang Wen-Qi, Li Zhe, Ma Zi-Ang, Dong Cun-Ku, Liu Hui, Mao Jing, Ye Fu-Xing, Du Xi-Wen
机构信息
Institute of New-Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China.
Tianjin Key Laboratory of Advanced Joining Technology, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China.
出版信息
Chem Commun (Camb). 2022 Feb 24;58(17):2878-2881. doi: 10.1039/d1cc06892j.
A self-supported silver electrode was prepared by plasma spraying and used for catalysing the hydrogen evolution reaction. Thanks to the non-equilibrium synthetic conditions, the silver catalyst exposes high-energy (200) crystal planes, which enhance the adsorption of hydrogen and improve the intrinsic catalytic activity. As a result, the silver catalyst delivers an overpotential of 349 mV at 10 mA cm, which was much lower than those of Ag foil (742 mV) and commercial Ag powder (657 mV). This work provides a new idea of preparing active electrocatalysts by traditional processes.
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