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

被引：108

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.

引用

页码：4701 / 4706

页数：6

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