کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10245119 | 47713 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effect of different types of additives on the catalytic activity of Au/Al2O3 in propene total oxidation: transition metal oxides and ceria
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The total oxidation of C3H6 was investigated over Au/Al2O3, and multicomponent Au/MOx/Al2O3 (M: Ce, Mn, Co, Fe) catalysts prepared by deposition-precipitation with urea. The catalysts have been characterized by means of X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), total surface area (BET), and diffuse reflectance ultra-violet-visible spectroscopy DR/UV-Vis. Based on this characterization, it was concluded that gold is present as Au0. The most active catalyst is Au/CeOx/Al2O3. Ceria and the transition metal oxides act as cocatalysts. It can supply oxygen via a Mars and van Krevelen mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 229, Issue 1, 1 January 2005, Pages 154-162
Journal: Journal of Catalysis - Volume 229, Issue 1, 1 January 2005, Pages 154-162
نویسندگان
Andreea Catalina Gluhoi, Nina Bogdanchikova, Bernard E. Nieuwenhuys,