Toward the Adoption of a Photocatalytic Membrane Electrode Assembly (P-MEA) System for Sustainable Green Hydrogen Production

Mang Muan Lian, Bo-Sang Kim, Su-Min Lee, Su-Ho Ahn and Jung-Ho Yun ()
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Mang Muan Lian: Air & Environment Energy Nexus (A2EN) Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seoul 17104, Republic of Korea
Bo-Sang Kim: Air & Environment Energy Nexus (A2EN) Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seoul 17104, Republic of Korea
Su-Min Lee: Air & Environment Energy Nexus (A2EN) Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seoul 17104, Republic of Korea
Su-Ho Ahn: Air & Environment Energy Nexus (A2EN) Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seoul 17104, Republic of Korea
Jung-Ho Yun: Air & Environment Energy Nexus (A2EN) Lab, Department of Environmental Science and Engineering, College of Engineering, Kyung Hee University, Seoul 17104, Republic of Korea

Sustainability, 2025, vol. 17, issue 22, 1-19

Abstract: Green hydrogen production using membrane electrode assembly (MEA) has attracted significant attention due to its remarkable energy conversion efficiency. To further enhance its sustainability, MEA-based water electrolysis can be integrated with renewable solar energy by adopting a photocatalytic MEA (P-MEA) system, incorporating light-transmitting windows into MEA stacks, and employing suitable photocatalytic electrode materials. A critical challenge lies in developing cost-effective and high-performance photocatalytic electrode materials by replacing conventional noble material systems with earth-abundant photocatalytic electrode materials. This review discusses recent advances in P-MEA concepts and fabrication strategies for photoelectrodes tailored to MEA operation. Particular emphasis is placed on elucidating the mechanisms of light-induced charge dynamics that govern the P-MEA-based water electrolysis process. Overall, this review highlights the synergistic potential of integrating photocatalysis with MEA-based water electrolysis to advance sustainable green hydrogen production.

Keywords: membrane electrode assembly (MEA); photocatalytic reaction; photocatalytic MEA (P-MEA); green hydrogen production; photocatalytic electrode materials (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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