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  • Title: Low-temperature selective catalytic reduction of NO on MnO(x)/TiO(2) prepared by different methods.
    Author: Jiang B, Liu Y, Wu Z.
    Journal: J Hazard Mater; 2009 Mar 15; 162(2-3):1249-54. PubMed ID: 18650000.
    Abstract:
    Catalysts based on MnO(x)/TiO(2) were prepared by sol-gel, impregnation, and coprecipitation methods for low-temperature selective catalytic reduction (SCR) of NO with NH(3). Among the catalysts, the sample prepared by sol-gel method had the best performance on both activity and SO(2) resistance. From the results of thermo gravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectrum (XPS), it was known that manganese oxides and titania existed in different phase in the samples prepared by three methods. Strong interaction, large surface area, high concentration of hydroxyl groups, high concentration of amorphous Mn on the surface might be the main reasons for the excellent performance of the catalysts.
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