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Cross‐Linked Spirocyclic Quaternary Ammonium‐Based Anion Exchange Membrane with Tunable Properties for Fuel Cell Applications
Author(s) -
Chu Fuqiang,
Chu Xufeng,
Zhang Shuai,
Zhu Huanhuan,
Ren Yurong,
Han Juanjuan,
Xie Ruigang,
Lin Bencai,
Ding Jianning
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900080
Subject(s) - ion exchange , acrylonitrile , ammonium , membrane , ammonium bromide , chemistry , alkaline fuel cell , styrene , polymer chemistry , polymerization , inorganic chemistry , nuclear chemistry , materials science , copolymer , ion , polymer , organic chemistry , pulmonary surfactant , biochemistry
The alkaline stability of anion exchange membranes (AEMs) is crucial to the performance of alkaline anion exchange membrane fuel cells (AEMFCs). Here, we have prepared and characterization of a series of new spirocyclic quaternary ammonium‐based AEMs with good alkaline stability. The AEMs was obtained by UV‐initiated polymerization of N, N‐diallylpiperidinium bromide ([DAPip][Br]), styrene and acrylonitrile. The water uptake, swelling ratio, IEC and conductivity of the AEMs increase with increasing the [DAPip][Br] content. The transparent and mechanically robust AEMs show high conductivities (7.99×10 −2 S cm −1 at 80 °C) and good alkaline stability in 1 M KOH solution at 80 °C. The single cell with [DAPip][OH] 20 showed a maximum power density of 93.9 mW cm −2 . The spirocyclic quaternary ammonium‐based AEMs with an aliphatic backbone will open up new prospects for the preparation of AEMs with excellent alkaline stability and high conductivity.