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Carbon Nanotube Free-Standing Film of Pt/MWNTs as a Bifunctional Component in Hydrogen Proton Exchange Membrane Fuel Cells

  • Jason M. Tang (a1), Kurt Jensen (a2), Paul Larsen (a3), Wenzhen Li (a4), Mikhail E. Itkis (a5), Yushan Yan (a6) and Robert C. Haddon (a7)...

Abstract

Conventional fuel cell architecture on one side of the membrane electrode assembly consists of a carbon backing layer, hydrophobic microporous layer (MPL), and a catalyst layer, which is in contact with the solid proton exchange membrane. Pt nanoparticles are deposited onto multi-walled carbon nanotubes (Pt/MWNTs) and a free-standing film of Pt/MWNTs is fabricated to act as the MPL and the catalyst layer in hydrogen fuel cells. The free-standing film of Pt/MWNTs condenses two functions into one bifunctional layer that simplifies the fuel cell fabrication procedure. Fuel cell polarization performance improves when using the free-standing film of Pt/MWNTs without the MPL resulting in a higher peak performance of 1.2 W/cm2 in comparison with 1.0 W/cm2 when in the presence of a MPL.

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Keywords

Carbon Nanotube Free-Standing Film of Pt/MWNTs as a Bifunctional Component in Hydrogen Proton Exchange Membrane Fuel Cells

  • Jason M. Tang (a1), Kurt Jensen (a2), Paul Larsen (a3), Wenzhen Li (a4), Mikhail E. Itkis (a5), Yushan Yan (a6) and Robert C. Haddon (a7)...

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