Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

Mark V. Fedkin; Xiangyang Zhou; Michael A. Hofmann; Elena Chalkova; Jamie A. Weston; Harry R. Allcock; Serguei N. Lvov

doi:10.1016/S0167-577X(01)00391-3

Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

Mark V. Fedkin, Xiangyang Zhou, Michael A. Hofmann, Elena Chalkova, Jamie A. Weston, Harry R. Allcock, Serguei N. Lvov

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80 Scopus citations

Abstract

Methanol crossover in proton-conducting polyphosphazene membranes was investigated using polymer electrolyte fuel cells. The transport of methanol through a membrane from the lower chamber of the cell to the upper chamber was conducted by molecular diffusion through the polymer structure. It is found that the methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution were 40 times lower than that of Nafion and 10-20 times lower with respect to sulfonated polyphosphazene membranes.

Original language	English (US)
Pages (from-to)	192-196
Number of pages	5
Journal	Materials Letters
Volume	52
Issue number	3
DOIs	https://doi.org/10.1016/S0167-577X(01)00391-3
State	Published - Jan 2002

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/S0167-577X(01)00391-3

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title = "Evaluation of methanol crossover in proton-conducting polyphosphazene membranes",

abstract = "Methanol crossover in proton-conducting polyphosphazene membranes was investigated using polymer electrolyte fuel cells. The transport of methanol through a membrane from the lower chamber of the cell to the upper chamber was conducted by molecular diffusion through the polymer structure. It is found that the methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution were 40 times lower than that of Nafion and 10-20 times lower with respect to sulfonated polyphosphazene membranes.",

author = "Fedkin, {Mark V.} and Xiangyang Zhou and Hofmann, {Michael A.} and Elena Chalkova and Weston, {Jamie A.} and Allcock, {Harry R.} and Lvov, {Serguei N.}",

note = "Funding Information: The authors acknowledge the support of this work by the US Department of Energy (Contract no. DE-PS02-98EE504493, CARAT Program). The authors thank D.D. Macdonald for helpful discussions during the course of this study.",

year = "2002",

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doi = "10.1016/S0167-577X(01)00391-3",

language = "English (US)",

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journal = "Materials Letters",

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TY - JOUR

T1 - Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

AU - Fedkin, Mark V.

AU - Zhou, Xiangyang

AU - Hofmann, Michael A.

AU - Chalkova, Elena

AU - Weston, Jamie A.

AU - Allcock, Harry R.

AU - Lvov, Serguei N.

N1 - Funding Information: The authors acknowledge the support of this work by the US Department of Energy (Contract no. DE-PS02-98EE504493, CARAT Program). The authors thank D.D. Macdonald for helpful discussions during the course of this study.

PY - 2002/1

Y1 - 2002/1

N2 - Methanol crossover in proton-conducting polyphosphazene membranes was investigated using polymer electrolyte fuel cells. The transport of methanol through a membrane from the lower chamber of the cell to the upper chamber was conducted by molecular diffusion through the polymer structure. It is found that the methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution were 40 times lower than that of Nafion and 10-20 times lower with respect to sulfonated polyphosphazene membranes.

AB - Methanol crossover in proton-conducting polyphosphazene membranes was investigated using polymer electrolyte fuel cells. The transport of methanol through a membrane from the lower chamber of the cell to the upper chamber was conducted by molecular diffusion through the polymer structure. It is found that the methanol diffusion coefficients of phenyl phosphonic acid functionalized poly[aryloxyphosphazene] membranes in an aqueous methanol solution were 40 times lower than that of Nafion and 10-20 times lower with respect to sulfonated polyphosphazene membranes.

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DO - 10.1016/S0167-577X(01)00391-3

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SP - 192

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JO - Materials Letters

JF - Materials Letters

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ER -

Evaluation of methanol crossover in proton-conducting polyphosphazene membranes

Abstract

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