Highly Ethanol-Selective Electrocatalytic CO2 Reduction Enabled by Site-Specific Heteroatoms Doped Single Atom Catalysts Supported Cu Clusters

Electrochemical CO2 reduction reaction (CO2 RR) driven by renewable power is a promising way to convert CO2 to fuels and chemicals, which has been proposed as a sustainable process for the artificial carbon cycle. Among all products, ethanol (C2H5OH) has received extensive attention because it can be directly used as fuel in internal combustion engines and industrial power generation. Cu-based catalysts can efficiently promote C-C coupling toward C2+ products in CO2 RR. However, most Cu-based catalysts still show an insufficient selectivity for C2H5OH ( 75 %) at a low overpotential (< 800 mV). This project will set the scene for the fabrication of highly efficient and commercially available electrodes for the eCO2 RR to production of C2H5OH.