Review on crossover minimization and catalytic layer-promoted water dissociation in bipolar membranes

IF 10.1 1区工程技术 Q1 ENERGY & FUELS

Applied Energy Pub Date : 2025-05-25 DOI:10.1016/j.apenergy.2025.126176

Fanxu Meng , Dongbo Cheng , Meng Lin , Kuichang Zuo , Zishuai Bill Zhang

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Abstract

Bipolar membranes (BPMs) present a promising solution to reduce the ion and molecule crossover without substantial increases in the full cell voltage within water and CO₂ electrolyzers. The catalytic layer, positioned between an anion and cation exchange membrane within a BPM, is considered as the pivotal component influencing the water dissociation (WD) process and therefore the transmembrane voltage drop. Delving into the catalytic layer, this Review dissects the impact of descriptors, including thickness, electrical conductivity, hydrophilicity, pK_a, oxygenated functional groups, and surface hydroxyl coverage, on WD by coupling reported studies with the Multiphysics model analysis. We observed that the role of oxygenated functional groups towards WD is highly controversial and lacks sufficient experimental evidence. The Review emphasizes the significance of collaborative efforts to develop standardized protocols for BPM fabrications and measurements and advocates the establishment of systematic guidelines on optimizing the catalytic layer to advance BPM technology in the energy field.

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双极膜中交叉最小化和催化层促进水解离的研究进展

双极膜（bpm）提供了一种很有前途的解决方案，可以减少离子和分子交叉，而不会大幅增加水和CO2电解槽内的全电池电压。在BPM中，位于阴离子和阳离子交换膜之间的催化层被认为是影响水解离（WD）过程和跨膜电压降的关键成分。深入研究催化层，本综述通过将已报道的研究与多物理场模型分析相结合，剖析了描述符（包括厚度、电导率、亲水性、pKa、含氧官能团和表面羟基覆盖率）对WD的影响。我们观察到，氧合官能团对WD的作用存在很大争议，缺乏足够的实验证据。该评论强调了合作开发BPM制造和测量标准化协议的重要性，并主张建立优化催化层的系统指南，以推进能源领域的BPM技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Energy 工程技术-工程：化工

CiteScore

21.20

自引率

10.70%

发文量

1830

审稿时长

41 days

期刊介绍： Applied Energy serves as a platform for sharing innovations, research, development, and demonstrations in energy conversion, conservation, and sustainable energy systems. The journal covers topics such as optimal energy resource use, environmental pollutant mitigation, and energy process analysis. It welcomes original papers, review articles, technical notes, and letters to the editor. Authors are encouraged to submit manuscripts that bridge the gap between research, development, and implementation. The journal addresses a wide spectrum of topics, including fossil and renewable energy technologies, energy economics, and environmental impacts. Applied Energy also explores modeling and forecasting, conservation strategies, and the social and economic implications of energy policies, including climate change mitigation. It is complemented by the open-access journal Advances in Applied Energy.