CO-ELECTROLYSIS CELL DESIGN FOR EFFICIENT CO2 REDUCTION FROM GAS PHASE AT LOW TEMPERATURE

摘要

It is the objective of the present invention to provide a design for an electrochemical cell, in particular a co-electrolysis cell for CO 2 reduction reaction, that can overcome the problem of parasitic CO 2 pumping from cathode to anode side and, at the same time, maintain good Faradaic efficiency towards CO 2 reduction reaction in a co-electrolysis system where pure or diluted gaseous CO 2 is used. This objective is achieved according to the present invention by an electrochemical polymer electrolyte membrane cell, comprising: a) an anode, b) a cathode, c) a polymer ion exchange membrane between cathode and anode, and d) an additional ion exchange polymer film between the cathode and the polymer ion exchange membrane.