Facilitating mass transport in gas diffusion layer of PEMFC by fabricating micro-porous layer with dry layer preparation
作者： Jian Chen , Haifeng Xu , Huamin Zhang , Baolian Yi
DOI: 10.1016/J.JPOWSOUR.2008.04.031
关键词: Chemical engineering 、 Chemistry 、 Gas diffusion layer 、 Analytical chemistry 、 Gaseous diffusion 、 Multiprotocol Label Switching 、 Pore size 、 Mass transport 、 Proton exchange membrane fuel cell 、 Layer (electronics) 、 Electrochemistry
摘要: Abstract For a proton exchange membrane fuel cell (PEMFC), dry layer preparation was optimized and applied to fabricate micro-porous (MPL) for gas diffusion (GDL). The MPLs fabricated by the conventional wet were compared physical electrochemical methods. PEMFC using showed better performance than that MPLs, especially when cells operated under conditions of high oxygen utilization rate humidification temperature air. mass transport properties GDLs with also found be related pore size distribution in GDLs. differences surface morphology investigated analyzed. more beneficial forming meso-pores (pore range 0.5–15 μm), which are important advantageous facilitating Moreover, exhibited electronic conductivity stable hydrophobicity those MPLs. reproducibility satisfying.
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