High-Performance Nanofiber Fuel Cell Electrodes

  • ChemPubSoc Europe Logo
  • Author: ChemistryViews
  • Published Date: 28 November 2011
  • Source / Publisher: ChemSusChem/Wiley-VCH
  • Copyright: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: High-Performance Nanofiber Fuel Cell Electrodes

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Catalysts are key cost components in proton-exchange membrane (PEM) fuel cells. Consequently, there has been ongoing research to improve electrode catalyst activity and durability, particularly for platinum-based cathodes in hydrogen/air PEM fuel cells.

Wenjing Zhang and Peter N. Pintauro, Vanderbilt University, Nashville, TN, USA, fabricated a nanofiber electrode by electrospinning an ink composed of Pt/C catalyst particles in a solution of Nafion and poly(acrylic acid). Exceptionally high power densities and platinum mass activity are achieved when using the mat as cathode in H2/air and H2/O2 fuel cell membrane–electrode assemblies.
The nanofiber cathode also exhibits outstanding stability in accelerated durability tests.

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