The effect of BPSH post treatment on DMFC performance and properties

Michael Anthony Hickner; Y. Kim; J. McGrath; P. Zelenay; B. Pivovar

The effect of BPSH post treatment on DMFC performance and properties

Michael Anthony Hickner, Y. Kim, J. McGrath, P. Zelenay, B. Pivovar

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Direct methanol fuel cells (DMFCs) are being investigated for applications ranging from milliwatt (cell phones) to kilowatt (APUs) size scales. A common pitfall for DMFCs has been the inability of the electrolyte, typically Nafion, to act as an effective methanol barrier. Methanol crossover adversely affects the cell by lowering the cell voltage due to a mixed potential at the cathode and lower fuel utilization. Improved DMFC performance was demonstrated with sulfonated poly(arylene ether sulfone) copolymer membranes (1). Another study has shown the dependence of polymer properties and morphology on the post treatment of such membranes (2). In agreement with measurements on free-standing films, the fuel cell characteristics of these membranes have been found to have a strong dependence on acidification treatment. Methanol permeability, proton conductivity, and electro-osmotic drag coefficient all were found to increase when the membranes were acidified under boiling conditions versus a low-temperature process.

Original language	English (US)
Title of host publication	Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium
Editors	M. Murthy, T.F. Fuller, J.W. Zee, S. Gottesfeld
Pages	530-540
Number of pages	11
Volume	PV 2002-31
State	Published - 2005
Event	Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium - Salt Lake City, UT, United States Duration: Oct 21 2002 → Oct 23 2002

Other

Other	Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium
Country/Territory	United States
City	Salt Lake City, UT
Period	10/21/02 → 10/23/02

All Science Journal Classification (ASJC) codes

Engineering(all)

Cite this

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title = "The effect of BPSH post treatment on DMFC performance and properties",

abstract = "Direct methanol fuel cells (DMFCs) are being investigated for applications ranging from milliwatt (cell phones) to kilowatt (APUs) size scales. A common pitfall for DMFCs has been the inability of the electrolyte, typically Nafion, to act as an effective methanol barrier. Methanol crossover adversely affects the cell by lowering the cell voltage due to a mixed potential at the cathode and lower fuel utilization. Improved DMFC performance was demonstrated with sulfonated poly(arylene ether sulfone) copolymer membranes (1). Another study has shown the dependence of polymer properties and morphology on the post treatment of such membranes (2). In agreement with measurements on free-standing films, the fuel cell characteristics of these membranes have been found to have a strong dependence on acidification treatment. Methanol permeability, proton conductivity, and electro-osmotic drag coefficient all were found to increase when the membranes were acidified under boiling conditions versus a low-temperature process.",

author = "Hickner, {Michael Anthony} and Y. Kim and J. McGrath and P. Zelenay and B. Pivovar",

year = "2005",

language = "English (US)",

volume = "PV 2002-31",

pages = "530--540",

editor = "M. Murthy and T.F. Fuller and J.W. Zee and S. Gottesfeld",

booktitle = "Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium",

note = "Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium ; Conference date: 21-10-2002 Through 23-10-2002",

}

Hickner, MA, Kim, Y, McGrath, J, Zelenay, P & Pivovar, B 2005, The effect of BPSH post treatment on DMFC performance and properties. in M Murthy, TF Fuller, JW Zee & S Gottesfeld (eds), Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium. vol. PV 2002-31, pp. 530-540, Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium, Salt Lake City, UT, United States, 10/21/02.

The effect of BPSH post treatment on DMFC performance and properties. / Hickner, Michael Anthony; Kim, Y.; McGrath, J. et al.
Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium. ed. / M. Murthy; T.F. Fuller; J.W. Zee; S. Gottesfeld. Vol. PV 2002-31 2005. p. 530-540.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - The effect of BPSH post treatment on DMFC performance and properties

AU - Hickner, Michael Anthony

AU - Kim, Y.

AU - McGrath, J.

AU - Zelenay, P.

AU - Pivovar, B.

PY - 2005

Y1 - 2005

N2 - Direct methanol fuel cells (DMFCs) are being investigated for applications ranging from milliwatt (cell phones) to kilowatt (APUs) size scales. A common pitfall for DMFCs has been the inability of the electrolyte, typically Nafion, to act as an effective methanol barrier. Methanol crossover adversely affects the cell by lowering the cell voltage due to a mixed potential at the cathode and lower fuel utilization. Improved DMFC performance was demonstrated with sulfonated poly(arylene ether sulfone) copolymer membranes (1). Another study has shown the dependence of polymer properties and morphology on the post treatment of such membranes (2). In agreement with measurements on free-standing films, the fuel cell characteristics of these membranes have been found to have a strong dependence on acidification treatment. Methanol permeability, proton conductivity, and electro-osmotic drag coefficient all were found to increase when the membranes were acidified under boiling conditions versus a low-temperature process.

AB - Direct methanol fuel cells (DMFCs) are being investigated for applications ranging from milliwatt (cell phones) to kilowatt (APUs) size scales. A common pitfall for DMFCs has been the inability of the electrolyte, typically Nafion, to act as an effective methanol barrier. Methanol crossover adversely affects the cell by lowering the cell voltage due to a mixed potential at the cathode and lower fuel utilization. Improved DMFC performance was demonstrated with sulfonated poly(arylene ether sulfone) copolymer membranes (1). Another study has shown the dependence of polymer properties and morphology on the post treatment of such membranes (2). In agreement with measurements on free-standing films, the fuel cell characteristics of these membranes have been found to have a strong dependence on acidification treatment. Methanol permeability, proton conductivity, and electro-osmotic drag coefficient all were found to increase when the membranes were acidified under boiling conditions versus a low-temperature process.

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M3 - Conference contribution

AN - SCOPUS:28544445919

VL - PV 2002-31

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BT - Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium

A2 - Murthy, M.

A2 - Fuller, T.F.

A2 - Zee, J.W.

A2 - Gottesfeld, S.

T2 - Proton Conducting Membrane Fuel Cells III - Proceedings of the International Symposium

Y2 - 21 October 2002 through 23 October 2002

ER -

The effect of BPSH post treatment on DMFC performance and properties

Abstract

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All Science Journal Classification (ASJC) codes

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