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Article Dans Une Revue ECS Transactions Année : 2011

High Performance Plasma Sputtered Fuel Cell Electrodes with Ultra Low catalytic metal Loadings

Résumé

Ultra-low Pt content PEMFC electrodes have been manufactured using magnetron co-sputtering of carbon and platinum on a commercial E-Tek_ uncatalyzed gas diffusion layer in plasma fuel cell deposition devices. Pt loadings lower than 0.01 mg cm-2 have been realized. The Pt catalyst is dispersed as small clusters with size less than 2 nm over a depth of 500 nm. PEMFC test with symmetric electrodes loaded with 0.01 mg cm-2 led to maximum reproducible power densities as high as 0.4 Wcm-2 with Nafion 212. Replacement of platinum was also realized by preparing MEAs composed of 0.01 mgPd cm-2 for the anode and 0.01 mgPd cm-2 + 0.001 mgPt cm-2 for the cathode and Nafion 212 membrane. Power density as high as 250 mW cm-2 were achieved at 80°C, which corresponds to a specific power density of 250 kW gPt-1

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Plasmas
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Dates et versions

hal-00642254 , version 1 (17-11-2011)

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  • HAL Id : hal-00642254 , version 1

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Christophe Coutanceau, Pascal Brault, Amaël Caillard, Mathieu Mougenot, Steve Baranton, et al.. High Performance Plasma Sputtered Fuel Cell Electrodes with Ultra Low catalytic metal Loadings. ECS Transactions, 2011, 41, pp.1151-1159. ⟨hal-00642254⟩
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