ZIF-8 Modified Silver Nanowire for Efficient CO2 Electrocatalytic Reduction

Electrochemical reduction of CO 2 into value-added chemicals is a promising way for carbon neutrality while hindered by the low activity and selectivity of electrocatalysts. Herein, a ZIF-8 modified silver nanowire (AgNW) was contracted and used as an efficient electrocatalyst for CO 2 reduction. The optimized ZIF-8/AgNW catalyst exhibited high CO selectivity with a faradic efficiency of CO (FE CO ) > 93% within the −1.0 to −1.3 V versus the reversible hydrogen electrode (RHE). It also achieved a high CO partial current density of 13.3 mA·cm −2 and demonstrated good stability over 10 hours in KCl electrolyte. Electrochemical results suggested that the synergistic effect between AgNWs and ZIF-8 enhanced the catalytic performance. Moreover, KCl as an electrolyte was found to be superior to KHCO 3 for the ZIF-8/AgNW catalyst.