Research trends: Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

M. V. Fedkin, Xiangyang Zhou, M. A. Hofmann, E. Chalkova, J. A. Weston, H. R. Allcock, S. N. Lvov

Research output: Contribution to specialist publicationArticle

Abstract

Methanol permeation was compared in new phosphonated polyphosphazene membranes with Nafion® 117 and sulfonated polyphosphazene membranes. A diffusion cell was developed to evaluate methanol crossover for a novel class of polyphosphazene electrolyte membranes. The methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution (50 vol %) were 40 times lower than for Nafion 117, and ∼ 10-20 times lower than for sulfonated polyphosphazene membranes. This is an abstract of an article originally published in Materials Letters 52(3) 192-196 (January 2002).

Original languageEnglish (US)
Pages192-196
Number of pages5
Volume2002
No5
Specialist publicationFuel Cells Bulletin
StatePublished - May 2002
Externally publishedYes

Fingerprint

Methanol
Protons
Membranes
Permeation
Electrolytes
poly(phosphazene)
Acids
perfluorosulfonic acid

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology

Cite this

Fedkin, M. V., Zhou, X., Hofmann, M. A., Chalkova, E., Weston, J. A., Allcock, H. R., & Lvov, S. N. (2002). Research trends: Evaluation of methanol crossover in proton-conducting polyphosphazene membranes. Fuel Cells Bulletin, 2002(5), 192-196.

Research trends : Evaluation of methanol crossover in proton-conducting polyphosphazene membranes. / Fedkin, M. V.; Zhou, Xiangyang; Hofmann, M. A.; Chalkova, E.; Weston, J. A.; Allcock, H. R.; Lvov, S. N.

In: Fuel Cells Bulletin, Vol. 2002, No. 5, 05.2002, p. 192-196.

Research output: Contribution to specialist publicationArticle

Fedkin, MV, Zhou, X, Hofmann, MA, Chalkova, E, Weston, JA, Allcock, HR & Lvov, SN 2002, 'Research trends: Evaluation of methanol crossover in proton-conducting polyphosphazene membranes' Fuel Cells Bulletin, vol. 2002, no. 5, pp. 192-196.
Fedkin MV, Zhou X, Hofmann MA, Chalkova E, Weston JA, Allcock HR et al. Research trends: Evaluation of methanol crossover in proton-conducting polyphosphazene membranes. Fuel Cells Bulletin. 2002 May;2002(5):192-196.
Fedkin, M. V. ; Zhou, Xiangyang ; Hofmann, M. A. ; Chalkova, E. ; Weston, J. A. ; Allcock, H. R. ; Lvov, S. N. / Research trends : Evaluation of methanol crossover in proton-conducting polyphosphazene membranes. In: Fuel Cells Bulletin. 2002 ; Vol. 2002, No. 5. pp. 192-196.
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