کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
193650 459775 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Templated Ru/Se/C electrocatalysts for oxygen reduction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Templated Ru/Se/C electrocatalysts for oxygen reduction
چکیده انگلیسی

Highly porous Ru/Se/C electrocatalysts have been successfully synthesized via a template-based method, which was carried out by the impregnation of a hard template (silica gel) with a mixture of RuCl3·xH2O, SeO2 and sucrose dissolved in water. The resulting Ru/Se/C catalysts show good catalytic activity for oxygen reduction in acidic media. The electrocatalysts are believed to consist of selenium-modified ruthenium nanoparticles, which are embedded in a high surface area carbon matrix. The structural properties of the prepared Ru/Se/C electrocatalysts were investigated using nitrogen physisorption measurements, X-ray diffraction and transmission electron microscopy. The elemental composition of prepared Ru/Se/C electrocatalysts was determined using electron microprobe. The catalytic activity was tested using the rotating-ring-disk-electrode technique in 0.1 M HClO4 solution at room temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 54, Issue 4, 30 January 2009, Pages 1350–1354
نویسندگان
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