Scheme 2.

Reaction steps for direct electron injection in the electroenzymatic reduction of a) CO2 to CO with carbon monoxide dehydrogenase and b) CO2 to CH3OH through a three‐step cascade of dehydrogenases without any co‐factors.

Reaction steps for direct electron injection in the electroenzymatic reduction of a) CO2 to CO with carbon monoxide dehydrogenase and b) CO2 to CH3OH through a three‐step cascade of dehydrogenases without any co‐factors.