کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1636580 1516980 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Manufacture, characterization and application of porous metal-fiber sintered felt used as mass-transfer controlling medium for direct methanol fuel cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Manufacture, characterization and application of porous metal-fiber sintered felt used as mass-transfer controlling medium for direct methanol fuel cells
چکیده انگلیسی
Fabrication, characterization and performance of a porous metal-fiber sintered felt (PMFSF) based on multi-tooth cutting and solid-phase sintering were studied. The PMFSF was used as the anodic methanol barrier in a passive air-breathing direct methanol fuel cell to mitigate the effects of methanol crossover. Compared with the commercial SUS316L felt made of bundle-drawn fibers, this self-made PMFSF has larger pore diameter, polarized pore distribution, irregular fiber shape, rougher surface, lower mass flow resistance and evident hydrophobicity. The results reveal that the use of a PMFSF significantly enhances the cell performance since it helps to maintain a balance between the reactant and product management while depressing methanol crossover. The PMFSF with a porosity of 70% yields the highest cell performance at a methanol concentration of 4 mol/L.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 23, Issue 7, July 2013, Pages 2085-2093
نویسندگان
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