Charge–orbital synergistic engineering of TM@Ti3C2O1−xBx for highly selective CO2 electrochemical reduction

Charge–orbital synergism is achieved by doping boron atoms into Ti 3 C 2 O 2 . The TM-to-C and B-to-C π-back bonding contribute to the activation of CO 2 molecules and CO intermediates in the CO 2 RR process.