Highly efficient In-Sn alloy catalysts for electrochemical reduction of CO2 to formate

被引：70

作者：

Lai, Qiang ^{[1
]}

Yang, Na ^{[1
]}

Yuan, Gaoqing ^{[1
]}

机构：

[1] South China Univ Technol, Sch Chem & Chem Engn, Key Lab Funct Mol Engn Guangdong Prov, Guangzhou, Guangdong, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2017年 / 83卷

基金：

中国国家自然科学基金;

关键词：

Electrochemical reduction of CO2; Indium-tin alloy; Formate; Bimetallic catalysts; CARBON-DIOXIDE REDUCTION; ELECTROCATALYTIC REDUCTION; ELECTRODE; INDIUM;

D O I：

10.1016/j.elecom.2017.08.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Gas diffusion electrodes (GDEs), including GDE-In0.90Sn0.10, GDE-In0.47Sn0.53 and GDE-In0.22Sn0.78, were prepared by electrodeposition of In-Sn alloys on carbon fiber paper, and then used to explore the electroreduction of CO2 to formate in aqueous solution. Compared with commercial indium or Sn foil catalysts, the GDEIn(0.90)Sn(0.10) electrode in particular is shown to have excellent catalytic performance towards electroreduction of CO2 to formate, with a high Faradaic efficiency (similar to 92%). More importantly, the catalytic activity of GDEIn(0.90)Sn(0.10) remained reasonably stable over a 22-hour period of electrolysis, and a relatively high electrolytic current density (15 mA cm(-2)) was obtained in an aqueous medium, demonstrating its potential for electrochemical reduction of CO2 to formate.

引用

页码：24 / 27

页数：4

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