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Journal of Inorganic Materials, Volume. 35, Issue 5, 573(2020)

CeO2 Modified Mn-Fe-O Composites and their Catalytic Performance for NH3-SCR of NO

Xiubing HUANG1... Peng WANG1, Jinzhang TAO2 and Zuoshuai XI1 |Show fewer author(s)
Author Affiliations
  • 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  • 2Guangdong Provincial Key Laboratory of Rare Earth Development and Application, Guangzhou 510310, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (32)
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    Figures & Tables(10)
    XRD patterns of the composites
    1. XRD patterns of the composites

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    SEM images of Ce(x)/Mn-Fe-O
    2. SEM images of Ce(x)/Mn-Fe-O

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    N2 adsorption-desorption curves of catalysts
    3. N2 adsorption-desorption curves of catalysts

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    Raman spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O
    4. Raman spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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    XPS spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O
    5. XPS spectra of samples Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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    (a) H2-TPR and (b) NH3-TPD curves of Mn-Fe-O and Ce(0.1)/Mn-Fe-O
    6. (a) H2-TPR and (b) NH3-TPD curves of Mn-Fe-O and Ce(0.1)/Mn-Fe-O

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    Catalytic activity toward NH3-SCR of NO over different catalysts
    7. Catalytic activity toward NH3-SCR of NO over different catalysts

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    SO2 and H2O step response experiments for Ce(0.1)/ Mn-Fe-O
    8. SO2 and H2O step response experiments for Ce(0.1)/ Mn-Fe-O

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    • Table 1. Structure properties of Ce(x)/Mn-Fe-O

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      Table 1. Structure properties of Ce(x)/Mn-Fe-O

      SampleSurface area/(m2·g-1)Pore volume/(cm3·g-1)Average pore size/nm
      Mn-Fe-O148.080.3028.92
      Ce(0.01)/Mn-Fe-O145.420.2907.82
      Ce(0.05)/Mn-Fe-O142.390.2657.45
      Ce(0.1)/Mn-Fe-O142.310.2627.36
      Ce(0.3)/Mn-Fe-O142.710.2557.14

    • Table 2. Surface atomic content of Ce(x)/Mn-Fe-O composites

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      Table 2. Surface atomic content of Ce(x)/Mn-Fe-O composites

      SampleCe : Mn : Femolar ratioSurface atomic content/%
      Fe2+Fe3+Mn2+Mn3+Mn4+Ce3+Ce4+
      Mn-Fe-O0 : 1.00 : 2.023961244135--
      Ce(0.01)/Mn-Fe-O0.01 : 1 : 2.0235652042381981
      Ce(0.05)/Mn-Fe-O0.08 : 1 : 2.0229712045351882
      Ce(0.1)/Mn-Fe-O0.17 : 1 : 2.0230701745381981
      Ce(0.3)/Mn-Fe-O0.43 : 1 : 2.0232682643311783
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    Xiubing HUANG, Peng WANG, Jinzhang TAO, Zuoshuai XI. CeO2 Modified Mn-Fe-O Composites and their Catalytic Performance for NH3-SCR of NO[J]. Journal of Inorganic Materials, 2020, 35(5): 573

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    Paper Information

    Category: RESEARCH PAPER

    Received: May. 31, 2019

    Accepted: --

    Published Online: Mar. 1, 2021

    The Author Email:

    DOI:10.15541/jim20190266

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology