Low Temperature Selective Catalytic Reduction of NO on CeO<sub>2</sub>-Fe<sub>3</sub>O<sub>4</sub>/TiO<sub>2</sub>,CeO<sub>2</sub> /TiO<sub>2</sub> Catalysts Prepared by Coprecipitation Method
Wen Long ZhenRui‐tang GuoWei Pan
Abstract
CeO 2 -Fe 3 O 4 /TiO 2 and CeO 2 /TiO 2 catalysts were prepared by coprecipitation method, and their activities for selective catalytic reduction of NO with NH 3 were investigated. As can be seen from the experimental results, the CeO 2 -Fe 3 O 4 /TiO 2 catalyst prepared showed the best SCR activity and SO 2 resistance. Based on the characterization results of BET, XRD, NH 3 -TPD and XPS the excellent performance of CeO 2 -Fe 3 O 4 /TiO 2 catalyst should be resulted from its large surface area, high NH 3 adsorption capacity and high concentration of surface chemisorbed oxygen.
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