Electrochemical reduction of CO2 in copper particle-suspended methanol
Electrochemical reduction of CO2 in copper particle-suspended methanol
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DOI：
10.1016/j.cej.2006.03.030
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发表时间：
2006-06
影响因子：
15.1
通讯作者：
S. Kaneco;Yousuke Ueno;H. Katsumata;Tohru Suzuki;K. Ohta
中科院分区：
文献类型：
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作者：
S. Kaneco;Yousuke Ueno;H. Katsumata;Tohru Suzuki;K. Ohta
研究了铜粉悬浮甲醇中CO2在铅锌电极上的电化学还原。在没有铜颗粒的情况下，CO2的电化学还原过程中只生成甲酸和一氧化碳，没有观察到碳氢化合物的生成。相反，在铜颗粒悬浮电解液中得到了碳氢化合物。随着铜粉含量的增加，甲烷和乙烯的法拉第效率逐渐增加，而甲酸和一氧化碳的电流效率逐渐降低。在铅和锌电极上，甲烷的最大生成效率分别为6%和12%。研究发现，在CO2的电化学还原过程中，通过在阴极中加入金属颗粒，可以大致改变和控制还原产物的分布。
The electrochemical reduction of CO2in copper particle-suspended methanol was investigated with lead and zinc electrodes. Without copper particles, only formic acid and carbon monoxide were formed in the electrochemical reduction of CO2, and the formation of hydrocarbons could not be observed. On the contrary, hydrocarbons were obtained in the copper particle-suspended electrolyte. The Faradaic efficiencies for methane and ethylene increased gradually with increasing the amounts of copper particles, however the current efficiencies of formic acid and CO decreased. The maximum formation efficiencies of methane were of 6% and 12%, at Pb and Zn electrodes, respectively. It was found to be able to roughly change and control the reduction product distributions by the addition of metal particles into the catholyte in the electrochemical reduction of CO2.