Superfine Ag nanoparticle decorated Zn nanoplates for the active and selective electrocatalytic reduction of CO2 to CO.

In this study, superfine Ag nanoparticle decorated ultrathin Zn nanoplate electrodes were prepared for the reduction of CO2 to CO for the first time. With an extremely tiny amount of superfine 2 nm Ag nanoparticles uniformly deposited on the surface, the CO Faradaic efficiency for the Zn electrode doubled to 84% at about 0.8 V vs. RHE, while the CO current density increased 7 times to 1.89 mA cm-2.