膜科学与技术

Position：Home >> Abstract

Poly(dibenzofuran-p-terphenyl quinuclidinium) anion exchange membranes

Authors： MEI Hao1, TIAN Yuxin1, LI Cheng1, JI Jiangyuan1, PENG Guancheng1, LI Ming1,2

Units： 1. School of New Energy and Electrical Engineering, Hubei University, Wuhan 430062, China; 2. Wuhan Limo Technology Co., Ltd., Wuhan 430206 China

KeyWords： water electrolysis; anion exchange membrane; dibenzofuran; microphase separation; dimensional stability

ClassificationCode：TQ15

year,volume(issue):pagination： 2026,46(2):171-177

Abstract：

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.

Funds：

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

AuthorIntro：

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

Reference：

[1]He X, Feng H, Wen J , et al. High stable poly (terphenyl-co-fluorene quinuclidinium) anion exchange membrane for alkaline water electrolysis[J]. Int J Hydrog Energy, 2024, 86:808-814.
[2]Zeng M Y, He X Y, Wen J , et al. N-methylquinuclidinium-based anion exchange membrane with ultrahigh alkaline stability[J]. Adv Mater, 2023, 35(51):230667.
[3]Zhang Y, Zhang F, Chen Y W, et al. Helical configuration channels boost performance in anion exchange membranes[J]. Chem Eng J, 2023, 455:140938.
[4]Feng H, He X, Su Q, et al. Poly (aryl quinucli-dinium) anion exchange membrane water electrolysis based on the mature industry chain of alkaline water electrolysis[J]. Int J Hydrog Energy, 2025, 98:915-922.
[5]Zhang H B, He X Y, Feng H H , et al. A poly(binaphthyl-co-terphenyl quinuclidinium) anion exchange membrane with excellent alkaline stability and anion conductivity[J]. J Mater Chem A, 2024, 12(35):23570-23576.
[6]Peng Z, Wei T, Wang Q , et al. Fabrication and investigation of anion exchange membranes based on poly(terphenyl piperidonium) copolymers with dibenzothiophene or dibenzofuran units for water electrolysis[J]. J Power Sources, 2025, 642:236918.
[7]Zhang S, Zhang Q, Guo C , et al. Comparison of the performances of dibenzofuran- and dibenzothiophene-based poly(terphenyl piperidinium) anion exchange membranes for water electrolysis[J]. Int J Hydrog Energy, 2025, 98:184-196.
[8]Jeong I, Min K, Kim H , et al. Poly(dibenzofuran-p-terphenyl piperidinium)-based anion exchange membranes with enhanced phase separation for water electrolysis[J]. J Membr Sci, 2023, 687:122079.
[9]Liu J, Gao L, Chen W , et al. High-performance and scalable poly(terphenyl-furan piperidinium) membrane for anion exchange membrane fuel cell with 2 W/cm2 of peak power density[J]. J Membr Sci, 2024, 692:122260.
[10]Gao J, Zhao J, Wu J , et al. Preparation of highly conductive anion exchange membranes by introducing dibenzothiophene monomer into the polymer backbone[J]. J Power Sources, 2024, 602:234314.
[11]Olsson J S, Pham T H，Jannasch P. Tuning poly(arylene piperidinium) anion-exchange membranes by copolymerization, partial quaternization and crosslinking[J]. J Membr Sci, 2019, 578:183-195.
[12]Zhu L, Pan J, Wang Y , et al. Multication side chain anion exchange membranes[J]. Macromolecules, 2016, 49(3):815-824.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com