Spectroscopic investigations of the fouling process on Nafion membranes in vanadium redox flow batteries

M. Vijayakumar, M. S. Bhuvaneswari, P. Nachimuthu, Birgit Schwenzer, Soowhan Kim, Zhenguo Yang, Jun Liu, Gordon L. Graff, S. Thevuthasan, Jianzhi Hu

Research output: Contribution to journalArticle

72 Citations (Scopus)

Abstract

The Nafion membrane is a critical component in redox flow batteries, which are widely investigated for grid-scale energy storage. However, there is very limited understanding of the fundamental properties of the membrane materials in the working environment relevant to redox flow batteries. This paper presents results of the analysis of the Nafion-117 membrane used in a vanadium redox flow battery by X-ray photoelectron spectroscopy (XPS), nuclear magnetic resonance (NMR) spectroscopy, and ultraviolet/visible spectroscopy. The XPS study reveals the chemical identity and environment of vanadium cations accumulated at the surface. On the other hand, the 17O NMR measurement explores the nature of the diffused vanadium cations inside the bulk part of the Nafion and shows the chemical bonding of cations and the host membrane. The 19F NMR shows that the basic Nafion structure is not altered by the vanadium cations diffused inside. Based on these spectroscopic studies, the chemical identity and environment of the diffused vanadium cations in the Nafion membrane are discussed. This study reveals important information on the origin of performance degradation of the membrane materials in vanadium redox flow batteries and provides clues on how to improve the chemistry and properties of the energy storage devices.

Original languageEnglish
Pages (from-to)325-334
Number of pages10
JournalJournal of Membrane Science
Volume366
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2011
Externally publishedYes

Fingerprint

Vanadium
fouling
Fouling
vanadium
Oxidation-Reduction
electric batteries
Cations
membranes
Membranes
Positive ions
cations
Photoelectron Spectroscopy
Magnetic Resonance Spectroscopy
energy storage
Energy storage
nuclear magnetic resonance
X ray photoelectron spectroscopy
Nuclear magnetic resonance
photoelectron spectroscopy
Magnetic resonance measurement

Keywords

  • O & F NMR and UV/Vis spectroscopy
  • Nafion membrane
  • Vanadium redox flow battery
  • XPS

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Biochemistry
  • Filtration and Separation

Cite this

Vijayakumar, M., Bhuvaneswari, M. S., Nachimuthu, P., Schwenzer, B., Kim, S., Yang, Z., ... Hu, J. (2011). Spectroscopic investigations of the fouling process on Nafion membranes in vanadium redox flow batteries. Journal of Membrane Science, 366(1-2), 325-334. https://doi.org/10.1016/j.memsci.2010.10.018

Spectroscopic investigations of the fouling process on Nafion membranes in vanadium redox flow batteries. / Vijayakumar, M.; Bhuvaneswari, M. S.; Nachimuthu, P.; Schwenzer, Birgit; Kim, Soowhan; Yang, Zhenguo; Liu, Jun; Graff, Gordon L.; Thevuthasan, S.; Hu, Jianzhi.

In: Journal of Membrane Science, Vol. 366, No. 1-2, 01.01.2011, p. 325-334.

Research output: Contribution to journalArticle

Vijayakumar, M, Bhuvaneswari, MS, Nachimuthu, P, Schwenzer, B, Kim, S, Yang, Z, Liu, J, Graff, GL, Thevuthasan, S & Hu, J 2011, 'Spectroscopic investigations of the fouling process on Nafion membranes in vanadium redox flow batteries', Journal of Membrane Science, vol. 366, no. 1-2, pp. 325-334. https://doi.org/10.1016/j.memsci.2010.10.018
Vijayakumar, M. ; Bhuvaneswari, M. S. ; Nachimuthu, P. ; Schwenzer, Birgit ; Kim, Soowhan ; Yang, Zhenguo ; Liu, Jun ; Graff, Gordon L. ; Thevuthasan, S. ; Hu, Jianzhi. / Spectroscopic investigations of the fouling process on Nafion membranes in vanadium redox flow batteries. In: Journal of Membrane Science. 2011 ; Vol. 366, No. 1-2. pp. 325-334.
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