Reactor with advanced architecture for the electrochemical reaction of co2, co, and other chemical compounds

A membrane electrode assembly comprising:

• a cathode layer comprising a reduction catalyst and a first anion-and-cation-conducting polymer;
• an anode layer comprising an oxidation catalyst and a first cation-conducting polymer;
• a membrane layer comprising a second cation-conducting polymer, the membrane layer arranged between the cathode layer and the anode layer and conductively connecting the cathode layer and the anode layer;
• and
• a cathode buffer layer comprising FumaSep FAA-3, the cathode buffer layer arranged between the cathode layer and the membrane layer and conductively connecting the cathode layer and the membrane layer.

A membrane electrode assembly comprising:

• a cathode layer comprising a reduction catalyst and FumaSep FAA-3;
• an anode layer comprising an oxidation catalyst and a first cation-conducting polymer;
• and
• a membrane layer comprising a second cation-conducting polymer, the membrane layer arranged between the cathode layer and the anode layer and conductively connecting the cathode layer and the anode layer.