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Topics in Catalysis

, Volume 49, Issue 3–4, pp 209–215 | Cite as

DRIFTS Study on the Decomposition Mechanism of Mn Acetylacetonates Supported on SBA-15

  • Kanaparthi RameshEmail author
  • Fengxi Chen
  • Armando Borgna
  • Chilukoti Srilakshmi
  • Yi-Fan Han
Original Paper

Abstract

Manganese oxides supported on mesoporous SBA-15 catalysts have been prepared by molecularly designed dispersion method, using Mn(II) and Mn(III) acetylacetonate organic precursors. XRD and in situ Raman studies demonstrate the formation of highly dispersed Mn2O3 and Mn3O4 nanoparticles on SBA-15 for the calcined samples. The detailed decomposition mechanism was studied by using in situ DRIFTS. Acetylacetonate ligands are stable up to 573 K and can only be completely removed by oxygen treatment.

Keywords

Molecularly designed dispersion method Mn acetylacetonates SBA-15 In situ DRIFTS Raman spectroscopy Mn2O3 and Mn3O4 nanoparticles 

Notes

Acknowledgments

This study is financially supported by the Institute of Chemical Engineering and Sciences (ICES, A-STAR, Singapore) in-house project.

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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Kanaparthi Ramesh
    • 1
    Email author
  • Fengxi Chen
    • 1
  • Armando Borgna
    • 1
  • Chilukoti Srilakshmi
    • 1
  • Yi-Fan Han
    • 1
  1. 1.Institute of Chemical and Engineering SciencesSingaporeSingapore

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