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- W2045174904 abstract "CeO2-TiO2 composite supports with different Ce/Ti molar ratios were prepared by a homogeneous precipitation method, and V2O5-WO3/CeO2-TiO2 catalysts for the selective catalytic reduction (SCR) of NOx with NH3 were prepared by an incipient-wetness impregnation method. These catalysts were characterized by means of BET, XRD, UV-Vis, Raman and XPS techniques. The results showed that the catalytic activity of V2O5-WO3/TiO2 was greatly enhanced by Ce doping (molar ratio of Ce/Ti=1/10) in the TiO2 support. The catalysts that were predominantly anatase TiO2 showed better catalytic performance than the catalysts that were predominantly fluorite CeO2. The Ce additive could enhance the surface adsorbed oxygen and accelerate the SCR reaction. The effects of O2 concentration, ratio of NH3/NO, space velocity and SO2 on the catalytic activity were also investigated. The presence of oxygen played an important role in NO reduction. The optimal ratio of NH3/NO was 1/1 and the catalyst had good resistance to SO2 poisoning." @default.
- W2045174904 created "2016-06-24" @default.
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- W2045174904 date "2014-10-01" @default.
- W2045174904 modified "2023-10-14" @default.
- W2045174904 title "Effect of Ce doping of TiO2 support on NH3-SCR activity over V2O5–WO3/CeO2–TiO2 catalyst" @default.
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- W2045174904 doi "https://doi.org/10.1016/j.jes.2014.08.010" @default.
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