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Facile Preparation of an Ether-Free Anion Exchange Membrane with Pendant Cyclic Quaternary Ammonium Groups

Ren, Rong, Zhang, Shuomeng, Miller, Hamish Andrew, Vizza, Francesco, Varcoe, John Robert and He, Qinggang (2019) Facile Preparation of an Ether-Free Anion Exchange Membrane with Pendant Cyclic Quaternary Ammonium Groups ACS Applied Energy Materials, 2 (7). pp. 4576-4581.

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Abstract

Ether-bond-free polyfluorene (PBF) anion exchange membranes (AEMs) containing flexible alkyl pendent chains terminated with piperidinium cations were prepared via one-pot, superacid-catalyzed polycondensation and a subsequent quaternization reaction. Hydrophilic and hydrophobic microphase segregation was observed in all AEMs. The hydroxide conductivity of PBF2-Br reaches up to 86 mS cm–1 at 80 °C, and 1H NMR showed no measurable degradation after alkaline treatment in aqueous NaOH (1 M) solution for 1200 h at 80 °C. Besides, a peak power density of 410 mW cm–2 was achieved at 60 °C for an alkaline fuel cell using the selected PBF1-OH (OH form) as AEM.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Ren, Rong
Zhang, Shuomeng
Miller, Hamish Andrew
Vizza, Francesco
Varcoe, John RobertJ.Varcoe@surrey.ac.uk
He, Qinggang
Date : 22 July 2019
Funders : Royal Society
DOI : 10.1021/acsaem.9b00674
Copyright Disclaimer : Copyright © 2019 American Chemical Society
Uncontrolled Keywords : Polyfluorene; Anion exchange membrane; Alkaline stability; Friedel−Crafts polycondensation; Fuel cell
Depositing User : Clive Harris
Date Deposited : 07 Aug 2019 09:22
Last Modified : 23 Jul 2020 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/852362

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