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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

Fraunhofer Institute for Solar Energy Systems, ISE, Heidenhofstrasse 2, 79110 Freiburg, Germany
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Academic Editors: Jean St-Pierre, Shangfeng Du and César Augusto Correia de Sequeira
Molecules 2020, 25(7), 1523; https://doi.org/10.3390/molecules25071523
Received: 20 December 2019 / Revised: 19 February 2020 / Accepted: 25 March 2020 / Published: 27 March 2020
(This article belongs to the Special Issue Proton Exchange Membrane Fuel Cells (PEMFCs))
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. View Full-Text
Keywords: cathode catalyst layer; I/C ratio; diffusion limitation; conductivity limitation cathode catalyst layer; I/C ratio; diffusion limitation; conductivity limitation
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MDPI and ACS Style

Alink, R.; Singh, R.; Schneider, P.; Christmann, K.; Schall, J.; Keding, R.; Zamel, N. 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. Molecules 2020, 25, 1523. https://doi.org/10.3390/molecules25071523

AMA Style

Alink R, Singh R, Schneider P, Christmann K, Schall J, Keding R, Zamel N. 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. Molecules. 2020; 25(7):1523. https://doi.org/10.3390/molecules25071523

Chicago/Turabian Style

Alink, Robert; Singh, Rajveer; Schneider, Patrick; Christmann, Kläre; Schall, Johannes; Keding, Roman; Zamel, Nada. 2020. "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" Molecules 25, no. 7: 1523. https://doi.org/10.3390/molecules25071523

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