Synergy of Cu-Doping and In Situ Reconstruction on Bi2O2CO3 for Promoting CO2 Electroreduction Over Wide pH Range

Doping Cu and in situ electrochemical reconstruction on Bi 2 O 2 CO 3 optimize the hybridization between Bi 6p of Bi 2 O 2 CO 3 and O 2p of *OCHO, leading to high HCOO − faradaic efficiency of >96% in the all-pH range and satisfactory durability.