碳氢化合物
甲烷
乙烯
铜
二氧化碳
材料科学
无机化学
选择性
氢
电化学
二氧化碳电化学还原
化学工程
催化作用
化学
一氧化碳
有机化学
电极
冶金
物理化学
工程类
作者
S. Sen,Brian Skinn,Rajeswaran Radhakrishnan,McLain Leonard,Fikile R. Brushett
出处
期刊:ECS transactions
[The Electrochemical Society]
日期:2017-07-07
卷期号:77 (11): 933-946
被引量:1
标识
DOI:10.1149/07711.0933ecst
摘要
This paper discusses the electrodeposition of thin copper (Cu) films on stainless steel substrates using pulse-reverse waveforms and the suitability of such films for electrocatalytic conversion of carbon dioxide (CO2) to hydrocarbon products such as methane and ethylene. Activation of these Cu layers through thermal oxidation and subsequent electrochemical reduction is also explored as a means of tuning selectivity toward higher hydrocarbons. An appreciable benefit in terms of overall hydrocarbon selectivity versus hydrogen evolution and other undesirable side reactions was observed from the use of pulsed methods, and the use of thermal activation resulted in a strong shift in the hydrocarbon product distribution from methane to ethylene.
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