کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1290559 973330 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Catalytic performance of Pt film with dendritic structure for PEFC
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Catalytic performance of Pt film with dendritic structure for PEFC
چکیده انگلیسی
A Pt catalyst film with dendritic microcrystalline structure has been prepared by reducing PtO2 deposited by reactive sputtering. It is to be employed as the cathode catalyst of a polymer electrolyte fuel cell (PEFC). Despite using no support material, this dendritic Pt film exhibits a very low density of 3.3 g cm−3. When applying the dendritic Pt as the cathode catalyst layer for a single fuel cell, the dendritic Pt provided higher performance, larger electrochemical surface area (ECA) and improved diffusion characteristics compared to a conventional sputtered Pt film. The activity based on unit ECA of the dendritic Pt was higher than that of Pt/C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 180, Issue 1, 15 May 2008, Pages 181-184
نویسندگان
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