Article ID Journal Published Year Pages File Type
10245119 Journal of Catalysis 2005 9 Pages PDF
Abstract
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.
Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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