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Investigating the Behavior of Cu-based Catalysts During Electrochemical CO2 Reduction with Liquid Cell Electron Microscopy

The electrochemical reduction of CO2 (CO2RR) into useful hydrocarbons is a promising strategy towards the sustainable conversion of renewable energy. By turning emitted CO2 back into a condensed form, it further closes the artificial carbon cycle. Research efforts in CO2RR, have been focused on finding electrocatalysts that are selective towards the desired products, such as ethylene, ethanol, 2-propanol, which can be used directly as fuels and base chemicals for the chemical industry. The main challenge with designing optimal electrocatalysts for this reaction is that it is inherently complex with several reaction pathways and multiple possible reaction products. It is known that Cu is the only catalytic material that