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

Mark Valentinovich Fedkin, X. Zhou, M. A. Hofmann, E. Chalkova, J. A. Weston, Harry R. Allcock, Serguei 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 1 2002

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All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Strategy and Management

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