Statistical Simulation of the Performance and Degradation of a PEMFC Membrane Electrode Assembly

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A 1-D MEA Performance model was developed that considered transport of liquid water, agglomerate catalyst structure, and the statistical variation of the MEA characteristic parameters. The model was validated against a low surface area carbon supported catalyst across various platinum loadings and operational conditions. The statistical variation was found to play a significant role in creating noise in the validation data and that there was a coupling effect between movement in material properties with liquid water transport. Further, in studying the low platinum loaded catalyst layers it was found that liquid water played a significant role in the increasing the ... continued below

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147-154

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Harvey, David; Bellemare-Davis, Alexander; Karan, Kunal; Jayansankar, Barath; Pharoah, Jon; Colbow, Vesna et al. July 1, 2012.

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A 1-D MEA Performance model was developed that considered transport of liquid water, agglomerate catalyst structure, and the statistical variation of the MEA characteristic parameters. The model was validated against a low surface area carbon supported catalyst across various platinum loadings and operational conditions. The statistical variation was found to play a significant role in creating noise in the validation data and that there was a coupling effect between movement in material properties with liquid water transport. Further, in studying the low platinum loaded catalyst layers it was found that liquid water played a significant role in the increasing the overall transport losses. The model was then further applied to study platinum dissolution via potential cycling accelerated stress tests, in which the platinum was found to dissolve nearest the membrane effectively resulting in reaction distribution shifts within the layer.

Physical Description

147-154

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  • Journal Name: ECS Transactions; Journal Volume: 50; Journal Issue: 2; Conference: 222nd ECS Meeting, Honolulu, Hawai’I, October 7 -12, 2012

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  • Report No.: DOE/E0000466-9
  • Grant Number: EE0000466
  • DOI: 10.1149/05002.0147ecst | External Link
  • Office of Scientific & Technical Information Report Number: 1084694
  • Archival Resource Key: ark:/67531/metadc841899

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  • July 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • July 22, 2016, 4:26 p.m.

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Harvey, David; Bellemare-Davis, Alexander; Karan, Kunal; Jayansankar, Barath; Pharoah, Jon; Colbow, Vesna et al. Statistical Simulation of the Performance and Degradation of a PEMFC Membrane Electrode Assembly, article, July 1, 2012; United States. (digital.library.unt.edu/ark:/67531/metadc841899/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.