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Title: Characterizing Electrolyte and Platinum Interface in PEM Fuel Cells Using CO Displacement

Relatively large O 2 transport resistance at the ionomer and Pt interface has been thought to be responsible for the large performance loss at high power for a low Pt loading proton-exchange-membrane fuel cell. A facile method to characterize the interface in the fuel cell electrode is needed. In this study, the CO displacement method was explored on polycrystalline Pt and carbon-supported Pt nanoparticles. The displacement charge coverages were used to quantify the adsorption of perchlorate, sulfate, and perfluorosulfonic acid ionomer. The application of this method in a fuel cell electrode was demonstrated.
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. General Motors Global Product Development, Pontiac, MI (United States); Univ. of South Carolina, Columbia, SC (United States)
  2. General Motors Global Product Development, Pontiac, MI (United States)
Publication Date:
Grant/Contract Number:
EE0007271
Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 164; Journal Issue: 2; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Research Org:
General Motors, Inc., Pontiac, MI (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE
OSTI Identifier:
1425405

Garrick, Taylor R., Moylan, Thomas E., Yarlagadda, Venkata, and Kongkanand, Anusorn. Characterizing Electrolyte and Platinum Interface in PEM Fuel Cells Using CO Displacement. United States: N. p., Web. doi:10.1149/2.0551702jes.
Garrick, Taylor R., Moylan, Thomas E., Yarlagadda, Venkata, & Kongkanand, Anusorn. Characterizing Electrolyte and Platinum Interface in PEM Fuel Cells Using CO Displacement. United States. doi:10.1149/2.0551702jes.
Garrick, Taylor R., Moylan, Thomas E., Yarlagadda, Venkata, and Kongkanand, Anusorn. 2016. "Characterizing Electrolyte and Platinum Interface in PEM Fuel Cells Using CO Displacement". United States. doi:10.1149/2.0551702jes. https://www.osti.gov/servlets/purl/1425405.
@article{osti_1425405,
title = {Characterizing Electrolyte and Platinum Interface in PEM Fuel Cells Using CO Displacement},
author = {Garrick, Taylor R. and Moylan, Thomas E. and Yarlagadda, Venkata and Kongkanand, Anusorn},
abstractNote = {Relatively large O2 transport resistance at the ionomer and Pt interface has been thought to be responsible for the large performance loss at high power for a low Pt loading proton-exchange-membrane fuel cell. A facile method to characterize the interface in the fuel cell electrode is needed. In this study, the CO displacement method was explored on polycrystalline Pt and carbon-supported Pt nanoparticles. The displacement charge coverages were used to quantify the adsorption of perchlorate, sulfate, and perfluorosulfonic acid ionomer. The application of this method in a fuel cell electrode was demonstrated.},
doi = {10.1149/2.0551702jes},
journal = {Journal of the Electrochemical Society},
number = 2,
volume = 164,
place = {United States},
year = {2016},
month = {12}
}

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