Abstract: A system and method with improved water management for the electrochemical conversion of a gaseous compound, in particular CO2, in a zero-gap electrolyzer comprises the direct injection of a liquid, such as water, in the gaseous feed comprising the gaseous compound (CO2) and providing the gas/liquid mixture to the membrane electrode assembly of the zero-gap electrolyser via an interdigitated flow channel. This way, the gas and the liquid are forced through the porous electrode structures, thus ensuring that both the liquid and the gaseous compound (CO2) are in close contact with the electrode, resulting in an improved hydration of the electrode and an efficient conversion of the gaseous compound (CO2).