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Catalysis Letters

, Volume 106, Issue 1–2, pp 89–93 | Cite as

Catalytic Performance of the Sb–V Mixed Oxide on Sb–V–O/SiO2 Catalysts in Methane Selective Oxidation to Formaldehyde

  • Haidong Zhang
  • Jing Zhang
  • Keqiang Sun
  • Zhaochi Feng
  • Pinliang Ying
  • Can Li
Article

Sb–V–O/SiO2 catalysts were prepared and investigated in methane selective oxidation with O2 as oxidant. Sb–V–O/SiO2 catalysts are active and selective in methane selective oxidation. The formaldehyde yield obtained on Sb–V–O/SiO2 catalysts is clearly higher than that for VO X /SiO2 and SbO X /SiO2 catalysts. A one-pass formaldehyde yield up to 3% was obtained on Sb–V–O/SiO2 catalysts at 650 °C. XRD and UV Raman studies showed that the phase of Sb–V mixed oxide on Sb–V–O/SiO2 catalysts transformed with decreasing Sb/V ratio from Sb2VO5 to SbVO4/VSb1-XO4-1.5X phase. The Sb–V mixed oxide in Sb2VO5 phase is more active and selective than that in SbVO4/VSb1-XO4-1.5X phase.

Keywords

methane selective oxidation formaldehyde antimony–vanadium mixed oxide phase transform 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Haidong Zhang
    • 1
  • Jing Zhang
    • 1
  • Keqiang Sun
    • 1
  • Zhaochi Feng
    • 1
  • Pinliang Ying
    • 1
  • Can Li
    • 1
  1. 1.State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of SciencesDalianChina

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