Anion Exchange Membrane Water Electrolysis from Catalyst Design to the Membrane Electrode Assembly

Anion exchange membrane (AEM) electrolysis aims to combine the benefits of alkaline electrolysis, such as stability cheap catalyst and advantages proton-exchange systems, like ability operate at differential pressure, fast dynamic response, low energy losses, higher current density. However, today, AEM is limited by AEMs exhibiting insufficient ionic conductivity well lower activity stability. Herein, recent developments outlook cost-efficient transition metal catalysts for hydrogen evolution reaction oxygen reaction, AEMs, ionomer, electrolytes, ionomer catalyst–electrolyte interaction, membrane-electrode assembly performance are described.