Experimental Results with Fuel Cell Start-up and Shut-down. Impact of Type of Carbon for Cathode Catalyst Support

Separate testing protocols for fuel cell startups and shutdowns were developed to distinguish between their effects on reverse currents and CO 2 evolution. The internal currents and the local potentials were measured with different membrane-electrode assemblies (MEAs): we examined the influence of t...

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Bibliographic Details
Published in:ECS transactions 2015, Vol.69 (17), p.1065-1074
Main Authors: Lottin, Olivier, Dillet, Jérôme, Maranzana, Gael, Abbou, Sofyane, Didierjean, Sophie, Lamibrac, Adrien, Borup, Rod L, Mukundan, Rangachary, Spernjak, Dusan
Format: Article
Language:English
Subjects:
30 DIRECT ENERGY CONVERSION
energy sciences
Engineering Sciences
fuel cell
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Summary:Separate testing protocols for fuel cell startups and shutdowns were developed to distinguish between their effects on reverse currents and CO 2 evolution. The internal currents and the local potentials were measured with different membrane-electrode assemblies (MEAs): we examined the influence of the type of carbon for cathode catalyst support as well as the mitigating effect of low anode Pt loading. Significant differences were observed and the experiments also confirmed previous results that the evolved CO 2 accounts for less than 25% of the total exchanged charge.
ISSN:1938-5862
1938-6737
1938-6737
DOI:10.1149/06917.1065ecst