Pt Nanoparticles Dispersion Influence on Fuel Cell Performance

Distinct membrane electrode assemblies (MEAs) fabricated of three electrocatalysts with different nano-structural orientation of Pt particles were studied in terms of ex-situ and in-situ electrochemical activity by a liquid electrolyte cell and a single-cell PEMFC respectively. The results exhibited...

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Bibliographic Details
Published in:ECS transactions 2013-03, Vol.50 (2), p.1353-1367
Main Authors: Darab, Mahdi, Gómez de la Fuente, Jose Luis, Skinlo Thomassen, Magnus, Sunde, Svein
Format: Article
Language:English
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Summary:Distinct membrane electrode assemblies (MEAs) fabricated of three electrocatalysts with different nano-structural orientation of Pt particles were studied in terms of ex-situ and in-situ electrochemical activity by a liquid electrolyte cell and a single-cell PEMFC respectively. The results exhibited that the electrochemical performance and durability are highly influenced by the dispersion of platinum nanoparticles over the matrix of the support. The variations of the electrochemical performances with respect to pure isolated Pt particles, a film of networked nanoparticles and a mixture of individual particles and aggregated ones were presented with addresses to fuel cell performances.
ISSN:1938-5862
1938-6737
DOI:10.1149/05002.1353ecst