کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
181926 | 459413 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly active PtRuFe/C catalyst for methanol electro-oxidation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High methanol electro-oxidation activity was obtained on novel PtRuFe/C (2:1:1 at.%) catalyst. Mass and specific activities were 5.67 A g−1 catal. and 177 mA m−2 for the PtRuFe/C catalyst while those of the commercial PtRu/C catalyst were 2.28 A g−1 catal. and 87.7 mA m−2, respectively. CO stripping results showed that on-set voltage for CO electro-oxidation was lowered by incorporation of Fe. XRD and XPS results revealed that Fe2O3 was formed instead of Fe(0), which resulted in large electron deficiency in Pt and easy CO electro-oxidation. The electron deficiency of Pt was proved by XPS results of Pt4f peaks, which moved to higher binding energies in PtRuFe/C than PtRu/C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochemistry Communications - Volume 9, Issue 9, September 2007, Pages 2163–2166
Journal: Electrochemistry Communications - Volume 9, Issue 9, September 2007, Pages 2163–2166
نویسندگان
Min Ku Jeon, Jung Yeon Won, Ki Rak Lee, Seong Ihl Woo,