A silver catalyst with a high-energy surface prepared by plasma spraying for the hydrogen evolution reaction.
Chem Commun (Camb)
; 58(17): 2878-2881, 2022 Feb 24.
Article
em En
| MEDLINE
| ID: mdl-35132980
ABSTRACT
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-2, 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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MEDLINE
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En
Ano de publicação:
2022
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Article