In order to improve the output performance of PEFC, it is important to increase the oxygen concentration at Pt catalyst surface, so the mass transfer performance of gas diffusion layer (GDL) and micro porous layer (MPL) have to be increased. In this study, the real GDL structure was reconstructed by X-ray CT image of carbon paper GDL with MPL. Two-phase flow analysis in GDL with MPL was carried out. In addition, the oxygen transfer calculation was combined with this model. So the effect of MPL on the liquid water distribution in GDL and the gas diffusion performance in wet condition were examined. Furthermore, considering the overlap layer of GDL and MPL, the overall oxygen transfer from channel to catalyst layer was evaluated, and the optimum condition was examined.
- Advanced Energy Systems Division
Effect of Internal and Interface Structure of GDL on Liquid Water and Oxygen Transport in PEFC
- Views Icon Views
- Share Icon Share
- Search Site
Inoue, G, Matsukuma, Y, & Minemoto, M. "Effect of Internal and Interface Structure of GDL on Liquid Water and Oxygen Transport in PEFC." Proceedings of the ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2010 8th International Fuel Cell Science, Engineering and Technology Conference: Volume 1. Brooklyn, New York, USA. June 14–16, 2010. pp. 689-696. ASME. https://doi.org/10.1115/FuelCell2010-33242
Download citation file: