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Understanding impacts of catalyst-layer thickness on fuel-cell performance via mathematical modeling

  • Author(s): Zenyuk, IV
  • Das, PK
  • Weber, AZ
  • et al.

Published Web Location

http://jes.ecsdl.org/content/163/7/F691
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Abstract

© The Author(s) 2016. In this article, a two-dimensional, multiphase, transient model is introduced and used to explore the impact of catalyst-layer thickness on performance. In particular, the tradeoffs between water production and removal through transport or evaporation are highlighted, with a focus on low-temperature performance. For the latter, a case study of an ultra-thin catalyst layer is undergone to explore how various material properties alter the steady-state and startup performance of a cell. The findings provide understanding and guidance to optimize fuel-cell performance with thin electrodes.

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