Electrodeposited Cu-Pd bimetallic catalysts for the selective electroreduction of CO2 to ethylene

Cu-Pd bimetallic catalysts were fabricated on carbon paper (CP) by the electrodeposition method via a dynamic hydrogen bubble template approach. At a potential of -1.2 V vs. RHE, the Faradaic efficiency (FE) of C2H4 could reach 45.2% with a current density of 17.4 mA cm(-2) in an H-type electrolytic cell. Detailed studies suggest that the enhanced performance of Cu-Pd/CP was attributed mainly to the synergistic effect, low interfacial charge transfer resistance, and the 3D architecture of the catalysts.