Position：Home >> Abstract

Preparation of dual-piperidinium side-chain type poly(arylene alkylene) 
anion exchange membranes
Authors： WANG Jiali1, ZHANG Xuqiang1, CAO Jiahe2, LI Xianming1,
 HUANG Shengmei1, ZHAO Chunhui1, ZHANG Qiugen2
Units： 1.The College of Materials Science and Engineering, Nanchang Hangkong University, 
Nanchang 330063, China; 2. The College of Chemistry and Chemical Engineering,
 Xiamen University, Xiamen 361005, China
KeyWords： anion exchange membrane; water electrolysis; microphase-separated structure; alkaline stability
ClassificationCode： TQ116.2+1； O632.7
year,volume(issue):pagination： 2026, 46(3):13-0

Abstract：

The development of anion exchange membranes (AEMs) with high ionic conductivity, excellent alkaline stability, and good dimensional stability is a crucial direction in hydrogen production via water electrolysis. Through superacid-catalyzed polymerization, a series of side chain type anion exchange membranes were synthesized with poly(fluorenyl arylene alkylene) as the main chain and bis-pyridinium as the cation. All the AEMs exhibited a microphase-separated structure, high ionic conductivity, as well as good dimensional and alkaline stability. The PFTT-MePi-0.5 AEM exhibited Cl- and OH- conductivities of 45.14 mS/cm and 120.07 mS/cm at 80 ℃, with a water uptake of 18.79% and a swelling ratio below 5%. After immersion in 1 mol/L NaOH solution at 70 ℃ for 1 200 hours, the OH- conductivity retention exceeded 93%. Moreover, an AEMWE single cell assembled with this membrane achieved a current density of 2.1 A/cm2 at 80 ℃, 2.0 V, and 1 mol/L KOH. Under a constant current density of 1 A/cm2, the cell operated continuously for 1 200 hours with a voltage decay rate of only 117 μV/h, maintaining membrane integrity without damage. 

Funds：

国家自然科学基金地区项目（52263018）； 江西省自然科学基金优秀青年项目（20242BAB22015）

AuthorIntro：
第一作者简介： 王家理（2002-），男，江西上饶人，硕士研究生，主要从事阴离子交换膜的研究.*通讯作者，E-mail：zhao.chunhui@nchu.edu.cn

Reference：

［1］尹卓毓, 吴洪, 姜忠义. 阴离子交换膜离子传导率与耐碱稳定性研究进展［J］. 膜科学与技术, 2023, 43(6): 112-127.
［2］史普鑫, 栾丽萍, 刘新磊. 面向绿氢生产的膜技术研究进展［J］. 膜科学与技术, 2023, 43(6): 128-138.
［3］Carboni N, Navarra M A, Passerini S, et al. Durability and degradation of anion exchange membranes in water electrolyzers［J］. J Mater Chem A, 2026, 14: 9852.
［4］Hu C, Wang Y, Lee Y M. Ether-free alkaline polyelectrolytes for water electrolyzers: Recent advances and perspectives［J］. Angew Chem Int Ed, 2025, 64: e202418324.
［5］Liu F, Miyatake K, Mahmoud A M A, et al. Polyphenylene-based anion exchange membranes with robust hydrophobic components designed for high-performance and durable anion exchange membrane water electrolyzers using non-PGM anode catalysts［J］. Adv Energy Mater, 2025, 15: 2404089.
［6］Xu F, Huang K, Wang H, et al. Block poly(aryl-co-alkyl imidazolium) anion exchange membranes with enhanced performance for fuel cell and water electrolyzer applications［J］. J Membr Sci, 2025, 715: 124922.
［7］Hifumi R, Toyama Y, Ikeda K, et al. Tetraarylphosphonium cations with excellent alkaline-resistant performance for anion-exchange membranes［J］. ChemSusChem, 2025, 18: e202402366.
［8］Chen J, Yan J, Yang W, et al. Cobaltocenium-containing poly(carbazole)s towards alkaline-stable anion exchange membrane via post-polymerization modification［J］. Sustain Energy Fuels, 2024, 8: 624-633.
［9］Marino M G, Kreuer K D. Alkaline stability of quaternary ammonium cations for alkaline fuel cell membranes and ionic liquids［J］. ChemSusChem, 2015, 8(3): 513-523.
［10］杨照照, 王小舟, 陈婉婷,等. 螺环柔性侧链PBI基阴离子交换膜的性能［J］. 膜科学与技术, 2023, 43(6): 71-78.
［11］Miyanishi S, Yamaguchi T. Analysis of the degradation mechanism of the polyarylene ether anion-exchange membrane for alkaline fuel cell and water-splitting cell applications ［J］. New J Chem, 2017, 41: 8036-8044.
［12］Olsson J S, Pham T H, Jannasch P. Poly(arylene piperidinium) hydroxide exchange membranes: Elucidating relationships between polymer structure, ion conductivity, and alkaline stability［J］. Adv Funct Mater, 2018, 28: 1702758.
［13］Chen N, Wang H H, Kim S P, et al. Poly(fluorenyl aryl piperidinium) membranes and ionomers for anion exchange membrane fuel cells［J］. Nat Commun, 2021, 12: 2359.
［14］Wang J, Zhao C, Liu Z, et al. Durable and conductive anion exchange membranes based on poly(m-triphenyl carbazolyl piperidinium) for water electrolysis［J］. Int J Hydrogen Energy, 2024, 58: 514-524.
［15］Chen N, Hu C, Wang H H, et al. Poly(alkyl-terphenyl piperidinium) ionomers and membranes with an outstanding alkaline-membrane fuel-cell performance of 2.58 W/cm2［J］. Angew Chem Int Ed, 2021, 60: 7710-7718.
［16］Yuan W, Zheng X, Zhang X, et al. Enhancing conductivity and alkaline stability of poly(aryl piperidinium) anion exchange membrane for fuel cells by grafting side-chain type piperidinium［J］. J Membr Sci, 2025, 717: 123661.
［17］Zhang X, Huang S, Zhong K, et al. Impact of flexible monomers in poly(bibenzyl-co-terphenyl alkylene) copolymers for anion exchange membrane water electrolysis［J］. Int J Hydrogen Energy, 2026, 205: 153402.
［18］Ren R, Zhang S, Miller H A, et al. Facile preparation of an ether-free anion exchange membrane with pendant cyclic quaternary ammonium groups［J］. ACS Appl Energy Mater， 2019, 2(7)：4576-4581. 
［19］Cruz O H, Zolotukhin M G, Fomine S, et al. High Tg functional aromatic polymers［J］. Macromolecules 2015, 48(4)：1026-1037. 

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

京公网安备11011302000819号