辽宁石油化工大学学报 ›› 2024, Vol. 44 ›› Issue (6): 23-31.DOI: 10.12422/j.issn.1672-6952.2024.06.004

• 材料科学与新能源(燃料电池用荷电膜及膜过程) • 上一篇    下一篇

环糊精交联的聚(三联苯⁃芴⁃哌啶)阴离子交换膜的制备

张鑫莉(), 韩龙, 巩守涛, 张凤祥()   

  1. 大连理工大学 化工海洋与生命学院,辽宁 盘锦 124221
  • 收稿日期:2024-10-11 修回日期:2024-11-25 出版日期:2024-12-25 发布日期:2024-12-24
  • 通讯作者: 张凤祥
  • 作者简介:张鑫莉(1998⁃),女,硕士研究生,从事燃料电池阴离子交换膜的研究;E⁃mail: zhangxlsger@163.com
  • 基金资助:
    国家自然科学基金项目(22075037);国家自然科学基金创新群体基金项目(22021005);中央高校基本科研基金项目(DUT19ZD214)

Cyclodextrin Crosslinked Poly (Triphenyl Fluorene Piperidine) Anion Exchange Membrane

Xinli ZHANG(), Long HAN, Shoutao GONG, Fengxiang ZHANG()   

  1. School of Chemical Engineering,Ocean and Life Sciences,Dalian University of Technology,Panjin Liaoning 124221,China
  • Received:2024-10-11 Revised:2024-11-25 Published:2024-12-25 Online:2024-12-24
  • Contact: Fengxiang ZHANG

摘要:

聚芳基哌啶阴离子交换膜(AEM)具有优异的耐碱稳定性,在阴离子交换膜燃料电池和碱性电解水中得到了广泛的研究。利用扭曲大体积结构的9,9?二苯基芴单体,制备了聚(三联苯?芴?哌啶)阴离子交换膜(PTDP);在此基础上,引入溴化改性的亲水大体积环糊精交联剂(β?CD?Br7),利用二者共同调控了AEM内的微相分离结构,并进行了性能测试。结果表明,当温度为80 ℃时,交联剂质量分数为5%的qPTDP?10?CD5 AEM的电导率为130.2 mS/cm;在温度为80 ℃的1 mol/L NaOH溶液中浸泡2 000 h后,其电导率保持率为94.3%,表现出较好的稳定性;当温度为80 ℃时,采用qPTDP?10?CD5膜组装的氢氧燃料电池表现出1 490 mW/cm2的峰值功率密度;在电池耐久性测试中,采用qPTDP?10?CD5膜组装的燃料电池经30 h后,电压保留率为89.7%,表现出良好的电池性能。

关键词: 阴离子交换膜, 扭曲大体积结构, 溴?β?环糊精, 交联, 微相分离, 燃料电池

Abstract:

Poly (arylpiperidine) anion exchange membrane (AEM) has been widely studied in anion exchange membrane fuel cells (AEMFCs) and alkaline electrolyzed water due to their excellent alkali resistance and stability. In this work, poly (triphenyl fluorene piperidine) (PTDP) AEM was prepared from 9,9?diphenylfluorene monomer with distorted large volume structure, and hydrophilic large volume cyclodextrin crosslinking agent (β?CD?Br7) was introduced on this basis, which can control the microphase separation structure in AEMs. The prepared qPTDP?10?CD5 AEM with 5% crosslinker content reached a high conductivity (130.2 mS/cm at 80 ℃). After the membrane was treated in 1 mol/L NaOH at 80 ℃ for 2 000 h, its conductivity retention was 94.3%, showing good stability. The H2/O2 fuel cell assembled with qPTDP?10?CD5 yielded a peak power density of 1 490 mW/cm2 at 80 ℃. In the durability test, the fuel cell assembled with qPTDP?10?CD5 showed a voltage retention rate of 89.7% after 30 h, showing good cell performance.

Key words: Anion exchange membrane, Twisted massive structure, Bromo?β?cyclodextrin, Cross?linked, Microphase separation, Fuel cell

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引用本文

张鑫莉, 韩龙, 巩守涛, 张凤祥. 环糊精交联的聚(三联苯⁃芴⁃哌啶)阴离子交换膜的制备[J]. 辽宁石油化工大学学报, 2024, 44(6): 23-31.

Xinli ZHANG, Long HAN, Shoutao GONG, Fengxiang ZHANG. Cyclodextrin Crosslinked Poly (Triphenyl Fluorene Piperidine) Anion Exchange Membrane[J]. Journal of Liaoning Petrochemical University, 2024, 44(6): 23-31.

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