Polymer electrolyte direct methanol fuel cells: an option for transportation applications

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PEFCs most frequently considered for electric vehicles have been based on either hydrogen carried aboard, or steam-reforming of methanol on board to produce H2 + CO2. Direct methanol fuel cells (DMFCs), which use a liquid methanol fuel feed, completely avoid the complexity and weight penalties of the reformer, but have not been considered a serious option until recently, because of much lower power densities. Recent advances in DMFCs have been dramatic, however, with the DMFC reaching power densities which are significant fractions of those provided by reformate/air fuel cells. Use of established Pt-Ru anode electrocatalysts and Pt cathode electrocatalysts in ... continued below

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5 p.

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Gottesfeld, S.; Cleghorn, S.J.C.; Ren, X.; Springer, T.E.; Wilson, M.S. & Zawodzinski, T.A. October 1, 1996.

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PEFCs most frequently considered for electric vehicles have been based on either hydrogen carried aboard, or steam-reforming of methanol on board to produce H2 + CO2. Direct methanol fuel cells (DMFCs), which use a liquid methanol fuel feed, completely avoid the complexity and weight penalties of the reformer, but have not been considered a serious option until recently, because of much lower power densities. Recent advances in DMFCs have been dramatic, however, with the DMFC reaching power densities which are significant fractions of those provided by reformate/air fuel cells. Use of established Pt-Ru anode electrocatalysts and Pt cathode electrocatalysts in polymer electrolyte DMFCs has resulted in enhanced DMFC performance, particularly when operated above 100 C and when catalyst layer composition and structure are optimized. The higher DMFC power densities recently achieved provide a new basis for considering DMFCs for transportation applications.

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5 p.

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OSTI as DE97000133

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  • Fuel cell seminar, Kissimmee, FL (United States), 17-20 Nov 1996

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  • Other: DE97000133
  • Report No.: LA-UR--96-3234
  • Report No.: CONF-961107--2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 389070
  • Archival Resource Key: ark:/67531/metadc677653

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  • October 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Feb. 26, 2016, 3:22 p.m.

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Gottesfeld, S.; Cleghorn, S.J.C.; Ren, X.; Springer, T.E.; Wilson, M.S. & Zawodzinski, T.A. Polymer electrolyte direct methanol fuel cells: an option for transportation applications, article, October 1, 1996; New Mexico. (digital.library.unt.edu/ark:/67531/metadc677653/: accessed September 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.