Modeling of polymer electrolyte fuel cell performance with reformate fuel feed streams

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Carbon monoxide poisoning of polymer electrolyte fuel cell anodes is a key problem to be overcome when operating on reformed fuels. CO adsorbs on the precious metal surface leading to substantial performance losses. Much recent work has explored this problem, using various Pt alloys in attempts to overcome the performance loss. In their studies of hydrogen oxidation on Pt and Pt alloy (Pt/Sn, Pt/Ru) electrodes exposed to H2/CO mixtures, Gasteiger et al. (1, 2) showed that a small oxidation current is observed before the onset of CO oxidative stripping (ca. 0.4 V) on Pt/Ru. However, these workers concluded that the ... continued below

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15 p.

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Springer, T.E.; Zawodzinski, T.A. & Gottesfeld, S. May 1, 1997.

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Description

Carbon monoxide poisoning of polymer electrolyte fuel cell anodes is a key problem to be overcome when operating on reformed fuels. CO adsorbs on the precious metal surface leading to substantial performance losses. Much recent work has explored this problem, using various Pt alloys in attempts to overcome the performance loss. In their studies of hydrogen oxidation on Pt and Pt alloy (Pt/Sn, Pt/Ru) electrodes exposed to H2/CO mixtures, Gasteiger et al. (1, 2) showed that a small oxidation current is observed before the onset of CO oxidative stripping (ca. 0.4 V) on Pt/Ru. However, these workers concluded that the observed current was

Physical Description

15 p.

Notes

OSTI as DE97008569

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  • 191. meeting of the Electrochemical Society, Inc., Montreal (Canada), 4-9 May 1997

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  • Other: DE97008569
  • Report No.: LA-UR--97-2196
  • Report No.: CONF-970517--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 625300
  • Archival Resource Key: ark:/67531/metadc692477

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  • May 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 29, 2016, 4:17 p.m.

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Springer, T.E.; Zawodzinski, T.A. & Gottesfeld, S. Modeling of polymer electrolyte fuel cell performance with reformate fuel feed streams, article, May 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc692477/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.