Efficient Electrochemical Reduction of CO2 to CO in Ionic Liquids

摘要

Electrochemical reduction of carbon dioxide (CO2) to CO is a promising strategy. However, achieving high Faradaic efficiency with high current density using ionic liquid (IL) electrolyte remains a challenge. In this study, the new IL N-octyltrimethyl ammonium 1,2,4-triazole ([N1118][TRIZ]) shows outstanding per- formance for electrochemical reduction of CO2 to CO on the commercial Ag electrode, and the current density can be up to 50.8 mAcm-2 with a Faradaic efficiency of 90.6%. The current density of CO is much higher than those reported in the IL electrolyte.