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Preparation of a Chemically Stable Polysulfone-based Anion Exchange Membrane Using DABCO as the Quaternization Agent

Lookup NU author(s): Xu Wang, Emeritus Professor Bernard Golding, Professor Eileen Yu, Emeritus Professor Keith Scott

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This is the final published version of an article that has been published in its final definitive form by AIDIC Servizi S.r.l., 2016.

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Abstract

The anion exchange membrane is crucial to the fuel cell development. In this paper, polysulfone was firstly choloromethylated via in-situ generation of choloromethylether which is known as a carcinogenic. 1,4-diazabicyclo[2.2.2]octane (DABCO) was used as the quaternization agent. The rigid cage structure of DABCO molecule prevents the Hofmann elimination reaction from occurring, thus the thermal stability of anion exchange membrane was improved. The membranes with various degree of substitution (DS) were obtained and 106 % DS exhibited a highest ionic conductivity of 0.046 Scm(-1) at 60 degrees C and 100 % relative humidity. The maximum power output of single cell using hydrogen and oxygen reached 114 mWcm(-2). The good electrochemical performance and less harmful preparation procedures make QDPSU a promising membrane material for anion exchange membrane fuel cells.

Publication metadata

Author(s): Wang X, Wang Y, Golding BT, Yu EH, Scott K

Publication type: Article

Publication status: Published

Journal: Chemical Engineering Transactions

Year: 2016

Volume: 51

Pages: 121-126

Print publication date: 01/01/2016

Acceptance date: 01/01/1900

Date deposited: 30/01/2018

ISSN (print): 1974-9791

ISSN (electronic): 2283-9216

Publisher: AIDIC Servizi S.r.l.

URL: http://dx.doi.org/10.3303/CET1651021

DOI: 10.3303/CET1651021

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