Stimulating Efficiency for Proton Exchange Membrane Water Splitting Electrolyzers: From Material Design to Electrode Engineering.

IF 36.3 1区 材料科学 Q1 ELECTROCHEMISTRY
Electrochemical Energy Reviews Pub Date : 2025-01-01 Epub Date: 2025-09-05 DOI:10.1007/s41918-025-00252-1
Yu Zhu, Fei Guo, ShunQiang Zhang, Zichen Wang, Runzhe Chen, Guanjie He, Xueliang Sun, Niancai Cheng
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Abstract

Proton exchange membrane water electrolyzers (PEMWEs) are a promising technology for large-scale hydrogen production, yet their industrial deployment is hindered by the harsh acidic conditions and sluggish oxygen evolution reaction (OER) kinetics. This review provides a comprehensive analysis of recent advances in iridium-based electrocatalysts (IBEs), emphasizing novel optimization strategies to enhance both catalytic activity and durability. Specifically, we critically examine the mechanistic insights into OER under acidic conditions, revealing key degradation pathways of Ir species. We further highlight innovative approaches for IBE design, including (i) morphology and support engineering to improve stability, (ii) structure and phase modulation to enhance catalytic efficiency, and (iii) electronic structure tuning for optimizing interactions with reaction intermediates. Additionally, we assess emerging electrode engineering strategies and explore the potential of non-precious metal-based alternatives. Finally, we propose future research directions, focusing on rational catalyst design, mechanistic clarity, and scalable fabrication for industrial applications. By integrating these insights, this review provides a strategic framework for advancing PEMWE technology through highly efficient and durable OER catalysts.

Graphical abstract: In order to realize the efficient application of the industrial PEMWEs, material design strategies for stimulating the activity and stability capability of OER electrocatalysts are summarized, including (i) morphology/support effects, (ii) structure/phase engineering, (iii) electronic configuration/interaction. Furthermore, the reaction mechanism is deeply clarified, and electrode engineering and challenges of IBEs in practical PEMWE application are focused.

质子交换膜水分解电解槽的激励效率:从材料设计到电极工程。
质子交换膜水电解槽(PEMWEs)是一种很有前途的大规模制氢技术,但其工业部署受到恶劣的酸性条件和缓慢的析氧反应(OER)动力学的阻碍。本文综述了铱基电催化剂(ibe)的最新进展,重点介绍了提高催化活性和耐久性的新优化策略。具体而言,我们批判性地研究了酸性条件下OER的机制见解,揭示了Ir物种的关键降解途径。我们进一步强调了IBE设计的创新方法,包括(i)形态学和支持工程以提高稳定性,(ii)结构和相位调制以提高催化效率,以及(iii)电子结构调整以优化与反应中间体的相互作用。此外,我们评估了新兴的电极工程策略,并探索了非贵金属基替代品的潜力。最后,我们提出了未来的研究方向,重点是合理的催化剂设计,机制清晰度和可扩展的工业应用制造。通过整合这些见解,本综述为通过高效耐用的OER催化剂推进PEMWE技术提供了战略框架。图形摘要:为了实现工业上的高效应用,总结了激发OER电催化剂活性和稳定性的材料设计策略,包括(i)形态/支撑效应,(ii)结构/相工程,(iii)电子组态/相互作用。在此基础上,对反应机理进行了深入的阐述,并重点介绍了ibe的电极工程及其在实际应用中的挑战。
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来源期刊
Electrochemical Energy Reviews
Electrochemical Energy Reviews ELECTROCHEMISTRY-
CiteScore
41.90
自引率
1.60%
发文量
25
期刊介绍: Shanghai University and the International Academy of Electrochemical Energy Science (IAOEES) collaborate to oversee Electrochemical Energy Reviews (EER). As the premier review journal of IAOEES, EER solely publishes top-tier scientific review articles that delve into the cutting-edge field of Advanced Materials for Electrochemical Energy Science and Technology.
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