考虑离聚物膨胀的质子交换膜水电解槽建模与性能优化

张剑飞; 徐勇; 屈治国

doi:10.16152/j.cnki.xdxbzr.2025-06-007

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考虑离聚物膨胀的质子交换膜水电解槽建模与性能优化

青年编委专刊 | 更新时间：2026-01-02

- 考虑离聚物膨胀的质子交换膜水电解槽建模与性能优化
- Modelling and performance optimisation of proton exchange membrane water electrolyzer considering ionomer swelling
- 西北大学学报（自然科学版） 2025年55卷第6期页码：1285-1296
- 作者机构：
  
  西安交通大学　热流科学与工程教育部重点实验室/能源与动力工程学院，陕西　西安　710049
- 作者简介：
  
  [ "张剑飞，博士，西安交通大学能源与动力工程学院教授，博士生导师，《西北大学学报（自然科学版）》青年编委。研究方向包括热质输运过程调控及其数值预测，储能与节能技术以及先进热管理技术。主持重点研发计划项目课题，国家自然科学基金面上项目、青年基金，陕西省重点研发计划重点项目、霍英东青年教师基金和教育部博士点基金等多项国家级与省部级项目，合作承担国家自然科学基金重大科研仪器研制项目。获2017年国家科技进步奖1项（创新团队奖，排名第13）、2015年国家技术发明二等奖1项（排名第3）、2024年陕西省自然科学一等奖1项（排名第4）和2011年教育部自然科学一等奖1项（排名第6）。在能源领域权威期刊发表SCI论文100余篇，H因子34（Google Scholar）。授权发明专利40余项。参与制定国家标准1项、地方标准1项、团体标准1项。入选斯坦福大学全球前2%顶尖科学家榜单（2024，2025）。任国际期刊Scientific Reports编委。" ]
  屈治国，男，教授，从事低碳能源转化与利用研究，zgqu@mail.xjtu.edu.cn。
- 基金信息：
  
  国家自然科学基金“叶企孙”科学基金(U2441281);陕西省重点研发计划(2024CY2-GJHX-88);陕西省创新人才推进计划-科技创新团队(2024RS-CXTD-35)
- DOI：10.16152/j.cnki.xdxbzr.2025-06-007
  中图分类号： TM911.4
- 收稿：2025-11-11，
  
  纸质出版：2025-12-25
- 稿件说明：
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张剑飞, 徐勇, 屈治国. 考虑离聚物膨胀的质子交换膜水电解槽建模与性能优化[J]. 西北大学学报（自然科学版）, 2025,55(6):1285-1296.

ZHANG Jianfei, XU Yong, QU Zhiguo. Modelling and performance optimisation of proton exchange membrane water electrolyzer considering ionomer swelling[J]. Journal of Northwest University (Natural Science Edition), 2025, 55(6): 1285-1296.
张剑飞, 徐勇, 屈治国. 考虑离聚物膨胀的质子交换膜水电解槽建模与性能优化[J]. 西北大学学报（自然科学版）, 2025,55(6):1285-1296. DOI： 10.16152/j.cnki.xdxbzr.2025-06-007.

ZHANG Jianfei, XU Yong, QU Zhiguo. Modelling and performance optimisation of proton exchange membrane water electrolyzer considering ionomer swelling[J]. Journal of Northwest University (Natural Science Edition), 2025, 55(6): 1285-1296. DOI： 10.16152/j.cnki.xdxbzr.2025-06-007.

摘要

质子交换膜水电解槽以电能为驱动力实现水分解成氧气和氢气。在水电解的过程中，阳极催化层是影响电解槽性能的核心部件之一，离聚物是催化层的重要成分，建立考虑离聚物吸水膨胀特性的一维电解槽模型，通过当量质量来修正离聚物的质子电导率，采用收缩电阻理论计算不同离聚物含量时的界面接触电阻，以长链和短链6种不同当量质量的离聚物为研究对象，分析其对电解槽性能的影响。研究发现，由于催化层中过多的离聚物会覆盖催化剂的活性位点，阳极催化层中的离聚物含量存在最优值。在使用不同类型的离聚物时，由于吸水性不同，最优离聚物含量不同，与离聚物吸水膨胀后催化层的孔隙率相关。据此，提出了最优孔隙率相关公式。此外，短链离聚物的性能在吸水膨胀前后的始终强于长链离聚物，证明了短链离聚物的优势。研究能够为质子交换膜水电解槽催化层的优化设计提供参考依据。

Abstract

Proton exchange membrane water electrolyzer decomposes water into oxygen and hydrogen using electrical energy as the driving force. During the water electrolysis process

the anode catalyst layer is a key factor influencing the performance of the electrolyzer. Based on the initial structural parameters of the proton exchange membrane water electrolyzer

this study establishes a one-dimensional electrolysis model to investigate the effect of ionomers in the anode catalyst layer on the operational performance of electrolyzer. Six ionomers with different equivalent weights

including both long-chain and short-chain types

were compared. Proton conductivity of ionomers was corrected based on their equivalent weights

and interfacial contact resistance at different ionomer contents was calculated using the constriction resistance theory. Since excessive ionomer in the catalyst layer can cover the active sites of catalyst

there exists an optimal ionomer content in the anode catalyst layer. When using different types of ionomers

the optimal ionomer content varies due to differences in water absorption

which is related to the porosity of the catalyst layer after ionomer water absorption and swelling. Based on this

a formula related to the optimal porosity is proposed in this paper. Furthermore

the performance of short-chain ionomer consistently outperforms that of long-chain ionomer both before and after water absorption and swelling

which demonstrates the advantages of short-chain ionomers. This study can provide references for the optimal design of catalyst layer in proton exchange membrane water electrolyzer.

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