Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 164, Issue 2, Pages F60-F64Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.0551702jes
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Funding
- U. S. Department of Energy, Office of Energy Efficiency and Renewable Energy [DE-EE0007271]
- GM Internship Program
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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. (C) The Author(s) 2016. Published by ECS. All rights reserved.
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