PEMFC reconfigured anodes for enhancing CO tolerance with air bleed.

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Description

Practical PEM fuel cells based on perfluorinated ionomer membranes (eg Nafion), most probably will use reformed fuel as primary source for the anode feed. The reformate, besides hydrogen, may contain trace amounts of carbon monoxide (CO. from a few to hundreds ppm), whose presence is detrimental to the cell performance. Energy conversion at fuel cells depends on highly dispersed carbon-supported Pt, where the hydrogen electro-oxidatisn takes place. However, CO strongly adsorbs on the Pt surface leading to a decreasing of the Pt active Surface area and consequently to losses in electrical current that are unacceptable for a practical device.

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1 p.

Creation Information

Uribe, F. J. (Francisco J.) & Zawodzinski, T. A. (Thomas A.), Jr. January 1, 2001.

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Description

Practical PEM fuel cells based on perfluorinated ionomer membranes (eg Nafion), most probably will use reformed fuel as primary source for the anode feed. The reformate, besides hydrogen, may contain trace amounts of carbon monoxide (CO. from a few to hundreds ppm), whose presence is detrimental to the cell performance. Energy conversion at fuel cells depends on highly dispersed carbon-supported Pt, where the hydrogen electro-oxidatisn takes place. However, CO strongly adsorbs on the Pt surface leading to a decreasing of the Pt active Surface area and consequently to losses in electrical current that are unacceptable for a practical device.

Physical Description

1 p.

Source

  • Submitted to: The Meeting of the Electrochemical Society in Philadelphia, May, 2002

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  • Report No.: LA-UR-01-6954
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975925
  • Archival Resource Key: ark:/67531/metadc928137

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

Description Last Updated

  • Dec. 12, 2016, 12:44 p.m.

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Uribe, F. J. (Francisco J.) & Zawodzinski, T. A. (Thomas A.), Jr. PEMFC reconfigured anodes for enhancing CO tolerance with air bleed., article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc928137/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.