کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760171 | 1498042 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sputter-deposited ultra-low catalyst loadings for PEM fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
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چکیده انگلیسی
Sputter-deposited Pt thin film layers are employed as catalyst material for polymer electrolyte membrane (PEM) fuel cells. An ultra-low catalyst loading of 5âμ gâcmâ2 platinum results in a maximum power density of 124-132âmWâcmâ2 depending on the gas diffusion layer substrate when feeding H2/O2 at ambient temperature and pressure. By using the sputter deposition process less catalyst is needed for comparable cell performance to contemporary standard electrodes loaded with 1âmgâcmâ2 Pt that have been used for reference. Catalyst layers sputter-deposited onto different porous electrodes are investigated with respect to their effect on characteristic fuel cell performance which improves by 8% after adding chromium or palladium thin film layers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 150, 4 October 2005, Pages 67-72
Journal: Journal of Power Sources - Volume 150, 4 October 2005, Pages 67-72
نویسندگان
D. Gruber, N. Ponath, J. Müller, F. Lindstaedt,