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 Locationhttp://jes.ecsdl.org/content/163/7/F691
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.