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Communication Dans Un Congrès Année : 2009

Study of diffusive limitations in Proton Exchange Membrane Fuel Cells (PEMFC)

Résumé

To improve Proton Exchange Membrane Fuel Cells (PEMFC) performances, phenomena occurring in operating conditions must be understood. This work investigates the influence of PTFE (PolyTetraFluoroEthylene) loading in cathodic active layers on the global PEMFC performance and more precisely on diffusive limitations. As they display a controllable pore texture, carbon aerogels may replace advantageously the usual carbon blacks as catalyst support in cathodes. Resulting Membrane Electrode Assemblies (MEA) are evaluated on a monocell test bench. This study shows that PTFE influences greatly PEMFC performances and diffusive limitations as it evacuates the water produced at the cathode. These results highlight that diffusive limitations must be controlled and that PTFE loading must be optimized.
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Dates et versions

hal-00490225 , version 1 (16-06-2010)

Identifiants

  • HAL Id : hal-00490225 , version 1

Citer

Mathilde Brigaudet, Sandrine Berthon-Fabry, Christian Beauger, Nathalie Job, Marian Chatenet, et al.. Study of diffusive limitations in Proton Exchange Membrane Fuel Cells (PEMFC). International Carbon Conference 2009, Jun 2009, Biarritz, France. 6 p. - http://hdl.handle.net/2268/5136. ⟨hal-00490225⟩
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