Anion Exchange Membrane Water Electrolysis from Catalyst Design to the Membrane Electrode Assembly. Issue 9 (28th July 2022)

• Record Type: Journal Article
• Authors: Faid, Alaa Y.; Sunde, Svein
• Is Part Of: Energy technology. Volume 10:Issue 9(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-07-28
• Subjects: alkaline electrolytes -- anion exchange membranes -- catalyst–ionomer interactions -- electrocatalysts -- membrane electrode assemblies -- water electrolysis; Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.202200506
• Languages: English
• ISSNs: 2194-4288

Abstract

Abstract : Anion exchange membrane (AEM) electrolysis aims to combine the benefits of alkaline electrolysis, such as stability of the cheap catalyst and advantages of proton‐exchange membrane systems, like the ability to operate at differential pressure, fast dynamic response, low energy losses, and higher current density. However, as of today, AEM electrolysis is limited by AEMs exhibiting insufficient ionic conductivity as well as lower catalyst activity and stability. Herein, recent developments and outlook of AEM electrolysis such as cost‐efficient transition metal catalysts for hydrogen evolution reaction and oxygen evolution reaction, AEMs, ionomer, electrolytes, ionomer catalyst–electrolyte interaction, and membrane‐electrode assembly performance and stability are described. Abstract : Hydrogen is an energy carrier, feedstock, industrial process gas, and alternative transportation fuel. Anion exchange membrane (AEM) water electrolysis is an efficient and economically feasible technology if cheap renewable electricity is available along with desired material and manufacturing scale‐up advancements. This review describes the AEM electrolysis components and advances so far with an outlook on future challenges and potential research pathways.