1. High Performance Plasma Sputtered Fuel Cell Electrodes with Ultra Low Catalytic Metal Loadings
- Author
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Mathieu Mougenot, Marjorie Cavarroc, Stève Baranton, Christophe Coutanceau, Amaël Caillard, Pascal Brault, Aboubakr Ennadjaoui, Brault, Pascal, Laboratoire de catalyse en chimie organique (LACCO), Université de Poitiers-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Groupe de recherches sur l'énergétique des milieux ionisés (GREMI), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), MID Dreux Innovation (MID), and Communauté d'Agglomération du Drouais
- Subjects
Materials science ,[SPI.PLASMA]Engineering Sciences [physics]/Plasmas ,Analytical chemistry ,chemistry.chemical_element ,Proton exchange membrane fuel cell ,[SPI.PLASMA] Engineering Sciences [physics]/Plasmas ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,7. Clean energy ,Cathode ,0104 chemical sciences ,Anode ,law.invention ,chemistry.chemical_compound ,chemistry ,law ,Nafion ,Electrode ,Cavity magnetron ,0210 nano-technology ,Platinum ,ComputingMilieux_MISCELLANEOUS ,Power density - Abstract
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 by palladium using plasma sputtering methods 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.
- Published
- 2011
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