Cu-Sn Gas Diffusion Electrodes Prepared for Continuous Electrochemical Reduction of CO2 to Formate

Over the past few years, humans excessive use fossil fuels that emission a lot of CO2 result the present energy crisis and earth’s global warming. Efficient conversion of CO2 into liquid fuels has been attracted more interest in recent years. In order to achieve continuous electrochemical reduction of CO2 to formate under ambient conditions the scientific has been made a lot of work. In this work we prepared a Cu-Sn gas diffusion electrodes deposited onto carbon paper by one step. We use a flowing liquid electrolyte reactor to evaluate the Cu-Sn gas diffusion electrodes property. Results shows that the maximum CO2 conversion current density to formate was 50 mA/cm2. Besides, the Cu-Sn gas diffusion electrodes used in electroreduction CO2 for over 10 h. Using one step prepared Cu-Sn gas diffusion electrodes may provide a new pattern into the electroreduction CO2 to alleviate mass transfer limitations and decrease ohmic impedance in electrochemical systems for the synthesis of higher formate by electroreduction CO2.