کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
44402 46024 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of support and promoter on the oxidation of sulfur dioxide using platinum based catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
The role of support and promoter on the oxidation of sulfur dioxide using platinum based catalysts
چکیده انگلیسی

The catalytic oxidation of SO2 to SO3 was studied over platinum based catalysts in the absence and the presence of dopants. The active metal was supported on silica gel or titania (anatase) by impregnation. The activities of the silica supported catalysts were found to follow the order Pt–Rh/SiO2 > Pt/SiO2 > Pt–Al/SiO2. For the samples supported on titania the respective order was Pt/TiO2 > Pt–Rh/TiO2 > Pt–Al/TiO2. The size of the particles of the active phase, the presence of dopants and the purity of the catalyst were found to affect the catalytic performance. A careful selection of the pH of the impregnation solution and of the reduction temperature of the precursor salts resulted in a very active catalyst with average particle size of 1.7 nm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 306, 7 June 2006, Pages 142–148
نویسندگان
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