کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1250889 1496039 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and investigation of the physico-chemical properties of catalysts based on mixed oxides CexZr1−xO2
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis and investigation of the physico-chemical properties of catalysts based on mixed oxides CexZr1−xO2
چکیده انگلیسی

A series of mixed oxide catalysts CexZr1−xO2 with different compositions (x = 0.93, 0.80, 0.75, 0.60, 0.55, and 0.50) were synthesized by co-precipitation technique using ammonia as the precipitant agent. Textural and structural properties of calcined ceria–zirconia oxides were characterized by nitrogen adsorption, X-ray diffraction and Raman spectroscopy. The redox properties were investigated by temperature-programmed reduction measurement using H2. The procedure of preparation as well as the composition has a great influence on the structural and textural properties of mixed oxides. Fluorite type oxides were shown to be a very interesting support for the total oxidation, since these materials led to the complete decomposition of ethyl acetate at rather low temperatures. Of the synthesized materials, Ce0.5Zr0.5O2 showed the best catalytic activity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 8, Issue 2, March 2015, Pages 222–227
نویسندگان
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