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

Min Suk J. Jung, Javier Parrondo, Christopher G. Arges, Vijay Ramani

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)10458-10464
Number of pages7
JournalJournal of Materials Chemistry A
Volume1
Issue number35
DOIs
StatePublished - Sep 21 2013

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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