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Title: A brief introduction of electrode fabrication for proton exchange membrane water electrolyzers
Authors: Lin, Xinlong
Seow, Justin Zhu Yeow
Xu, Jason Zhichuan
Keywords: Engineering::Materials
Issue Date: 2023
Source: Lin, X., Seow, J. Z. Y. & Xu, J. Z. (2023). A brief introduction of electrode fabrication for proton exchange membrane water electrolyzers. JPhys Energy, 5(3), 034003-.
Project: RG62/21 
Journal: JPhys Energy 
Abstract: Proton exchange membrane water electrolyzer (PEMWE) is a major enabler of green hydrogen production. The development of water electrolyzers is a vital step in driving the progress of a hydrogen-based economy. The system inside the electrolyzer is a zero-gap cell featuring low ohmic resistance and boosted mass transport, leading to higher energy efficiency and minimized capital cost. Besides, utilizing PEM in the electrolyzer for sustainable hydrogen production enables the system to perform with many advantages, including superior energy efficiency, higher hydrogen purity, and high flexibility. Therefore, as PEM electrolyzers continue to evolve, sustainable hydrogen production on a larger scale will be realized in the near future. This review summarizes the status quo of PEM water electrolyzers in the past four years. We will start with a brief introduction of the core of a water electrolyzer, namely the membrane electrode assembly (MEA), which will be followed by an introduction of fabrication methods of MEA, including CCM methods, catalyst-coated electrode methods, and other innovative fabrication methods. Next, we will summarize recent attempts to modify electrodes and membranes in MEAs to promote the performance of PEMWE. Subsequently, catalyst development for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in MEA is discussed, highlighting novel HER/OER catalysts and strategies to reduce the content of noble metals. Lastly, conclusion and perspectives are provided to present a blueprint to inspire the future development of PEMWE.
ISSN: 2515-7655
DOI: 10.1088/2515-7655/acccb1
Schools: School of Materials Science and Engineering 
Research Centres: Center for Advanced Catalysis Science and Technology
Energy Research Institute @ NTU (ERI@N) 
Rights: © 2023 The Author(s). Published by IOP Publishing Ltd. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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