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Examination of amine-functionalised anion-exchange membranes for possible use in the all-vanadium redox flow battery

Mallinson, SL, Varcoe, JR and Slade, RCT (2014) Examination of amine-functionalised anion-exchange membranes for possible use in the all-vanadium redox flow battery Electrochimica Acta, 140. pp. 145-151.

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Abstract

The applicability of amine-functionalised anion-exchange membranes (AEMs) for use in the all-vanadium redox flow battery has been studied. A selection of radiation-grafted aminated membranes functionalised with dimethylamine, trimethylamine or diazabicyclo(2,2,2)octane were extensively tested. The success of each grafting process was confirmed by Raman and infrared spectroscopies, titrimetry and ionic conductivity measurements. The amine-functionalised membranes were found to have poor thermo-oxidative stability and high vanadium cation permeabilities. The results highlight the importance of balancing ionic conductivity with vanadium cation permeability and indicate that amine-based functional groups may not be suitably stable for the membranes to remain true AEMs when in use in the all-vanadium redox flow battery. © 2014 Elsevier Ltd. All rights reserved.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
AuthorsEmailORCID
Mallinson, SLUNSPECIFIEDUNSPECIFIED
Varcoe, JRUNSPECIFIEDUNSPECIFIED
Slade, RCTUNSPECIFIEDUNSPECIFIED
Date : 10 September 2014
Identification Number : 10.1016/j.electacta.2014.06.058
Additional Information : Copyright 2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Depositing User : Symplectic Elements
Date Deposited : 19 Jun 2015 10:54
Last Modified : 10 Sep 2015 01:08
URI: http://epubs.surrey.ac.uk/id/eprint/807728

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