Electrochemical reduction of carbon dioxide to ethylene with high Faradaic efficiency at a Cu electrode in CsOH/methanol

被引：104
作者：
Kaneco, S [1 ]
Iiba, K
Hiei, N
Ohta, K
Mizuno, T
Suzuki, T
机构：
[1] Mie Univ, Fac Engn, Dept Chem Mat, Tsu, Mie 5148507, Japan
[2] Mie Univ, Environm Preservat Ctr, Tsu, Mie 5148507, Japan
来源：
ELECTROCHIMICA ACTA | 1999年 / 44卷 / 26期
关键词：
electrochemical reduction; carbon dioxide; copper electrode; CsOH/methanol; ethylene;
D O I：
10.1016/S0013-4686(99)00262-5
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical reduction of CO2 with a Cu electrode in CsOH/methanol-based electrolyte was investigated. The main products from CO2 were methane, ethylene, ethane. carbon monoxide and formic acid. A maximum Faradaic efficiency of ethylene was 32.3% at - 3.5 V vs. Ag/AgCl saturated KCl. The best methane formation efficiency was 8.3% at - 4.0 V. The ethylene/methane current efficiency ratio was in the range 2.9-7.9. In the CsOH/methanol, the efficiency of hydrogen formation, being a competitive reaction against CO2 reduction, was depressed to below 23%. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：4701 / 4706
页数：6
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