Nanostructured Ag/In/Cu foam catalyst for electrochemical reduction of CO2 to CO

被引：18

作者：

Lee, Hyunju ^{[1
]}

Kim, Junhyeong ^{[1
]}

Choi, Insoo ^{[2
]}

Ahn, Sang Hyun ^{[1
]}

机构：

[1] Chung Ang Univ, Sch Chem Engn & Mat Sci, 84 Heukseok Ro, Seoul 06974, South Korea

[2] Kangwon Natl Univ, Div Energy Engn, 346 Jungang Ro, Samcheok 25913, South Korea

来源：

ELECTROCHIMICA ACTA | 2019年 / 323卷

基金：

新加坡国家研究基金会;

关键词：

Electrochemical CO2 reduction; Carbon monoxide; Electrocatalyst; Nano structure; CARBON-DIOXIDE; ELECTROCATALYTIC REDUCTION; SILVER; ELECTROREDUCTION; COPPER; CONVERSION; MONOXIDE; INDIUM; HYDROCARBONS; ELECTRODES;

D O I：

10.1016/j.electacta.2018.11.101

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页数：10

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