Electrochemical CO<sub>2</sub> – C Conversion Based on Liquid Metal Electrodes
발표자
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초록
내용
In this study, electrochemical reduction of carbon dioxide with liquid metal working electrode has been tested. A liquid metal electrode containing cerium electrocatalysts enables room-temperature continuous electrocatalytic reduction of CO2 to solid carbon species at a very low onset potential. The liquid nature of the electrode prevents deactivation via coking caused by solid carbonaceous product of the electrocatalytic reduction is non-volatile solid, which can be effectively separated and stored. The solid carbon product obtained can be used as an energy resource like a solid carbon fuel cell through follow-up research, so it is expected that it will contribute to the carbon cycle generated by mankind. For application in industrial scale, however, the electrochemical cell setup should be scaled-up and have long-term stability. Here, we present the several large-scale setups with large-area liquid metal electrodes and discuss the results and issues.