Electrochemical CO2 Reduction to HCOOH Catalyzed by Agn(NO3)n+1 Clusters Prepared by Laser Ablation at the Air-Liquid Interface

CO2 reduction catalysts are an important aspect of global warming prevention. Herein, electrocatalytic CO2 reduction using Agn(NO3)n+1 clusters is reported. In contrast to various other Ag catalysts that reduce CO2 to CO, these Agn(NO3)n+1 clusters catalyze the electrochemical CO2 reduction reaction to produce HCOOH, with a Faraday efficiency of 33%. A size effect, the Ag valence stability and inorganic modification are all possible reasons for this drastic change in the selectivity.