Non-uniform agglomerate cathode catalyst layer model on the performance of PEMFC with consideration of water effect

Ken-Ming Yin, Bo-Syun Cheng and Kuo-Wei Chiang

Renewable Energy, 2016, vol. 95, issue C, 191-201

Abstract: We focus on the effect of cathode catalyst layer physical structure on the cell performance of proton exchange membrane fuel cell (PEMFC). At low polarization, high inlet humidification predicts better cell performance because of the more active surface in the CL. As polarization is extended near the mass transfer limited regime, high humidification only renders a flooded electrode and inferior cell performance. Catalyst layer with better capillary water transport parameters performs better than that with inferior water repulsion capability. Permeation in the gas diffusion layer (GDL) is important for efficient oxygen diffusion in mass transfer influenced regime. On the other hand, the permeability in catalyst layer only has secondary effect.

Keywords: PEMFC; MEA; Non-uniform catalyst layer; Agglomerate model; Liquid saturation; Water content (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:95:y:2016:i:c:p:191-201

DOI: 10.1016/j.renene.2016.04.015

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