Scale-up of Electrocatalytic Reduction of CO<SUB>2</SUB> to Carbonaceous Materials Based on Liquid Metal Electrodes
발표자
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초록
내용
A liquid metal electrode containing cerium electrocatalyst enables room-temperature continuous electrocatalytic reduction of CO2 to solid carbon species at a very low onset potential (-1.2V vs. Ag/Ag+; -310mV vs. CO2/C). The liquid nature of the electrode prevents deactivation via coking caused by solid carbonaceous species adhering onto the surface during the reaction. The carbonaceous product of the electrocatalytic reduction is non-volatile solid, which can be effectively separated and stored. For application in industrial scale, however, the electrochemical cell setup should be scaled-up and have a long-term stability. Here, we present the several large-scale setups with large-area liquid metal electrodes and discuss the results and issues.