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English
Conflict of Interest
In relation to this article, we declare that there is no conflict of interest.
Publication history
Received October 27, 2024
Revised November 15, 2024
Accepted December 6, 2024
Available online December 25, 2025
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Latest issues

Recent Progress on Designing Non‑noble Catalyst for Hydrogen Evolution Reaction in Anion Exchange Membrane Water Electrolyzers

Department of Chemical Engineering, Chung-Ang University
shahn@cau.ac.kr
Korean Journal of Chemical Engineering, December 2025, 42(14), 3349-3363(15)
https://doi.org/10.1007/s11814-024-00358-0

Abstract

As the global energy demand continues to grow, hydrogen is increasingly being recognized as an alternative energy source

to fossil fuels. Water splitting is an eco-friendly method for producing green hydrogen, and various technologies have been

explored. Among these, the Anion Exchange Membrane Water Electrolyzer (AEMWE) is known for its cost advantage,

because it can use non-noble metal catalysts. However, its performance still lags behind that of Proton Exchange Membrane

Water Electrolyzers that use noble metals. To improve AEMWE efficiency, it is important to design non-noble metal catalysts

that are equivalent to noble metal catalysts. Herein, we categorize various strategies for catalyst design based on recent

trends. Additionally, we explain the components of the AEMWE and analyze its electrochemical performance based on

different catalysts. We hope that this review will offer guide for future catalyst design by highlighting the key considerations

for achieving high-performance non-noble catalysts in AEMWE systems.

The Korean Institute of Chemical Engineers. F5,119, Anam-ro, Seongbuk-gu, Seoul, Republic of Korea
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