催化作用
电化学
还原(数学)
金属泡沫
化学工程
电催化剂
材料科学
碳纳米泡沫
铜
化学
无机化学
纳米技术
电极
冶金
有机化学
工程类
物理化学
数学
几何学
作者
Hyun Ju Lee,Junhyeong Kim,In-Soo Choi,Sang Hoon Ahn
标识
DOI:10.1016/j.electacta.2018.11.101
摘要
Abstract A nanostructured Ag/In/Cu foam is prepared by a facile electrochemical method and evaluated as a catalyst for the electrochemical reduction of CO2 to CO. The electrodeposited In is partially displaced by Ag to investigate the catalytic CO-producing activity of Ag/In catalyst with different composition of Ag and In, which is easily controlled by adjusting the displacement time of Ag. In order to provide a large electrochemical surface area, we then employ bubble-templated Cu foam as a roughened metal support for the Ag/In catalyst. The Ag/In/Cu foam catalyst exhibits notable performance to other previous catalysts, in terms of CO Faradaic efficiency and partial current density, especially in low overpotential region. The result is ascribed to the suppressed hydrogen evolution by In and morphological advantage by Cu foam.
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