کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1291098 | 973347 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication and evaluation of Pt–Fe alloys as methanol tolerant cathode materials for direct methanol fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Carbon-supported platinum–iron catalysts were prepared and characterised by means of scanning electron microscopy, energy-dispersive X-ray and X-ray diffraction techniques. The catalysts were tested for oxygen reduction in half-cells and in direct methanol fuel cells using voltammetric and steady-state polarisation measurements. Methanol oxidation was partially suppressed and higher net oxygen reduction currents were achieved at the PtFe/C cathodes, compared to the Pt alone. An increase in power density of up to 20–30% was achieved by using the PtFe/C rather than the Pt/C cathodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 163, Issue 1, 7 December 2006, Pages 323–329
Journal: Journal of Power Sources - Volume 163, Issue 1, 7 December 2006, Pages 323–329
نویسندگان
W. Yuan, K. Scott, H. Cheng,