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Citation: LIU Jun, WANG Liang-liang, FEI Zhao-yang, CHEN Xian, TANG Ji-hai, CUI Mi-fen, QIAO Xu. Structure and properties of amorphous CeO2@TiO2 catalyst and its performance in the selective catalytic reduction of NO with NH3[J]. Journal of Fuel Chemistry and Technology, ;2016, 44(08): 954-960. shu

Structure and properties of amorphous CeO2@TiO2 catalyst and its performance in the selective catalytic reduction of NO with NH3

  • 1.

    1. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China;

  • 2.

    2. College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China

  • Corresponding author: FEI Zhao-yang, 
  • Received Date: 5 April 2016
    Available Online: 6 May 2016

    Fund Project:

  • Amorphous CeO2@TiO2 catalyst was prepared by spontaneous deposition method and characterized by XRD, Raman spectra, TEM, N2 physisorption, H2-TPR, NH3-TPD and FT-IR; its performance in the selective catalytic reduction (SCR) of NO with NH3 was investigated. The results show that there is a strong interaction between Ce and Ti which are combined at atomic level. In comparison with the crystal CeO2/TiO2 catalyst prepared by impregnation, the amorphous CeO2@TiO2 catalyst exhibits larger surface area and pore volume, excellent redox ability and acidity, and outstanding catalytic performance in SCR. Over the CeO2@TiO2 catalyst, the conversion of NO reaches 80% at 175℃ and retains 96.0%-99.4% at 200-400℃. Moreover, the amorphous CeO2@TiO2 catalyst also shows strong resistance to H2O and SO2 poisoning.
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