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  4. Full Parametric Study of the Influence of Ionomer Content, Catalyst Loading and Catalyst Type on Oxygen and Ion Transport in PEM Fuel Cell Catalyst Layers
 
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2020
Zeitschriftenaufsatz
Titel

Full Parametric Study of the Influence of Ionomer Content, Catalyst Loading and Catalyst Type on Oxygen and Ion Transport in PEM Fuel Cell Catalyst Layers

Abstract
To advance the technology of polymer electrolyte membrane fuel cells, material development is at the forefront of research. This is especially true for membrane electrode assembly, where the structuring of its various layers has proven to be directly linked to performance increase. In this study, we investigate the influence of the various ingredients in the cathode catalyst layer, such as ionomer content, catalyst loading and catalyst type, on the oxygen and ion transport using a full parametric analysis. Using two types of catalysts, 40 wt.% Pt/C and 60 wt.% Pt/C with high surface area carbon, the ionomer/carbon content was varied between 0.29-1.67, while varying the Pt loading in the range of 0.05-0.8 mg cm−2. The optimum ionomer content was found to be dependent on the operating point and condition, as well as catalyst loading and type. The data set provided in this work gives a starting point to further understanding of structured catalyst layers.
Author(s)
Alink, Robert
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Singh, Rajveer
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Schneider, Patrick
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Christmann, Kläre
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Schall, Johannes
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Keding, Roman
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Zamel, Nada
Fraunhofer-Institut fĂĽr Solare Energiesysteme ISE
Zeitschrift
Molecules
Project(s)
DEKADE
Funder
Bundesministerium fĂĽr Bildung und Forschung BMBF (Deutschland)
DOI
10.3390/molecules25071523
File(s)
N-586739.pdf (1.83 MB)
Language
Englisch
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ISE
Tags
  • Wasserstofftechnologi...

  • Brennstoffzellensyste...

  • catalyst layer

  • ratio

  • limitation

  • cathode catalyst laye...

  • I / C tatio

  • diffusion limitation

  • conductivity limitati...

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