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聚二苯并呋喃对三联苯奎宁基阴离子交换膜

作者：梅昊¹，田雨欣¹，李城¹，冀江源¹，彭冠程¹，黎明¹，²

单位： 1. 湖北大学新能源与电气工程学院，武汉 430062； 2. 武汉立膜科技有限公司，武汉 430206

关键词：水电解；阴离子交换膜；二苯并呋喃；微相分离；尺寸稳定性

DOI号： 10.16159/j.cnki.issn1007-8924.2026.02.018

分类号： TQ15

出版年,卷(期):页码： 2026,46(2):171-177

摘要：

水电解制氢是解决能源危机的有效途径。本研究在聚芳烃奎宁基（PPTQ）聚合物主链骨架内添加二苯并呋喃（DBF）基团，制备了聚（二苯并呋喃对三联苯奎宁）基阴离子交换膜(AEMs)，记为PTDQx。系统地研究了DBF结构对AEMs性能的影响。研究表明，DBF的存在使其具有增强的氢键网络和微相分离结构，促进离子传导。与PPTQ相比，含DBF的PTDQx膜具有更好的尺寸稳定性和较高电导率。PTDQ20膜在80 ℃下达到了200.50 mS/cm的高电导率和50.1 MPa的高机械强度。将质量分数为30%的KOH作为电解液，基于PTDQ20的电解槽在2 V和80 ℃下，电流密度为2.37 A/cm2，且60 ℃时在0.5 A/cm2和1.0 A/cm2下稳定运行累计超过2 000 h。

Hydrogen production through water electrolysis is an effective approach to addressing the energy crisis. In this study, by incorporating dibenzofuran (DBF) groups into the main chain skeleton of poly(terphenyl quinuclidinium) (PPTQ) polymer, poly(dibenzofuran-p-terphenyl quinuclidinium) based anion exchange membranes (AEMs), denoted as PTDQx, were prepared. The influence of the DBF structure on the performance of AEMs was systematically investigated. The presence of DBF endowed the membranes with an enhanced hydrogen-bonding network and microphase-separated structure, promoting ion conduction. Compared with PPTQ, the PTDQx membranes containing DBF exhibited superior dimensional stability and higher conductivity. The PTDQ20 membrane achieved a high conductivity of 200.50 mS/cm and a high mechanical strength of 50.1 MPa at 80 ℃. Using 30% KOH as the electrolyte, the electrolyzer based on PTDQ20 operated stably at 2.37 A/cm2 at 2 V and 80 ℃, and at 0.5 A/cm2 and 1.0 A/cm2 at 60 ℃ for over 2 000 h.

基金项目：

武汉立膜科技有限公司（2022420111000256， 2023420111000277，2024420619004051）

作者简介：

梅昊(1999-)，男，湖北武汉人，硕士研究生，主要从事阴离子交换膜和电解水制氢研究

参考文献：

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