کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1294764 973638 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation, characterization, and high performance of RuSe/C for direct methanol fuel cells
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Preparation, characterization, and high performance of RuSe/C for direct methanol fuel cells
چکیده انگلیسی

RuSe/C catalysts prepared by different methods have been tested for oxygen reduction and the results analyzed based on the active species and particle size distribution. Inorganic precursor methods exhibit higher catalytic performance than the carbonyl method. Selenious acid is an excellent inorganic precursor. X-ray photoelectron spectra indicate that selenium in a high oxidation state is more active than that with zero valence. The effect of operating conditions is analyzed for catalysts prepared by the inorganic precursor method. The optimum heat-treatment temperature for both active phase formation and particle size distribution is 300 °C. A performance of 62 mW cm−2 at 80 °C is obtained using 80 wt.% RuSe/C in the cathode.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 175, Issue 1, 3 January 2008, Pages 175–182
نویسندگان
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