Under a Creative Commons license open access Keywords CO2 electroreduction Bulk acidic electrolyte Gas-diffusion electrode Reaction environment CO2 utilization and dilution Stability performance 1. Introduction Achieving a fast and thorough reduction of CO2 emissions which is the most important greenhouse gas, is of paramount importance for climate protection. This can be accomplished by substituting fossil resources in fuels and chemical feedstocks with renewable energy carriers [1], [2].
