Issue 35, 2013
From the journal:

Journal of Materials Chemistry A

Polysulfone-based anion exchange membranes demonstrate excellent chemical stability and performance for the all-vanadium redox flow battery†

Min-suk J. Jung,a   Javier Parrondo,a   Christopher G. Argesa  and  Vijay Ramani*a  

* Corresponding authors

a Center for Electrochemical Science and Engineering, Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA
E-mail: ramani@iit.edu

Abstract

A polysulfone-based anion exchange membrane functionalized with quaternary benzyl trimethylammonium groups (PSF-TMA+) demonstrated a 40-fold reduction in vanadium(IV) permeability when compared to a Nafion® membrane. Comprehensive 2D NMR (COSY and heteronuclear quantum correlation spectroscopy) studies verified that PSF-TMA+ remained chemically stable even after exposure to a 1.5 M vanadium(V) solution for 90 days. Excellent energy efficiencies (85%) were attained and sustained over several charge–discharge cycles for a vanadium redox flow battery prepared using the PSF-TMA+ separator.

Graphical abstract: Polysulfone-based anion exchange membranes demonstrate excellent chemical stability and performance for the all-vanadium redox flow battery

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Article information

DOI
https://doi.org/10.1039/C3TA11459G
Article type
Paper
Submitted
11 Apr 2013
Accepted
03 Jul 2013
First published
03 Jul 2013

J. Mater. Chem. A, 2013,1, 10458-10464

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Polysulfone-based anion exchange membranes demonstrate excellent chemical stability and performance for the all-vanadium redox flow battery

M. J. Jung, J. Parrondo, C. G. Arges and V. Ramani, J. Mater. Chem. A, 2013, 1, 10458 DOI: 10.1039/C3TA11459G

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