Ligand‐Free Silver Nanoparticles for CO ₂ Electrocatalytic Reduction to CO

The image shows that, by oxidizing the graphitic carbon (top), we introduce acid surface groups (oxygen atoms in red – bottom) which promote the formation of small silver nanoparticles (incipient wetness impregnation synthesis), as shown in the plot on the left. The 11 nm silver particles generated a larger CO current compared to larger particles (right plot).