Advances in Biomimetic Photoelectrocatalytic Reduction of Carbon Dioxide

Photoelectrocatalysis (PEC) combines electrocatalysis (EC) and photocatalysis (PC) for CO2 conversion, offering a green and efficient method. Biomimetic strategies, inspired by natural photosynthesis, enhance CO2 conversion efficiency. Biomimetic PEC interfaces enhance CO2 adsorption, activate CO2 preferentially, and convert it efficiently. They facilitate C=O bond activation and promote electron transfer and C–C coupling. This review discusses interfacial electron transfer and proton coupling on biomimetic PEC interfaces to clarify CO2 reduction mechanisms and presents challenges and perspectives for biomimetic photoelectrocatalytic CO2 reduction.

• 1
  Biomimetic PEC interfaces can be constructed using metal cocatalysts/semiconductors, small molecules/semiconductors, molecular catalysts/semiconductors, MOFs/semiconductors, and microorganisms/semiconductors.
• 2
  Enhanced CO2 adsorption capacity, effective CO2 activation, and efficient conversion ability are essential for a remarkable biomimetic PEC interface.
• 3
  Interfacial electron transfer and proton coupling on the biomimetic PEC interface play a crucial role in determining the mechanism of CO2 reduction.