Catalysis Letters

, Volume 119, Issue 3–4, pp 199–208 | Cite as

Mesoporous Au/TiO2 Catalysts for Low Temperature CO Oxidation

  • Y. Denkwitz
  • J. Geserick
  • U. Hörmann
  • V. Plzak
  • U. Kaiser
  • N. Hüsing
  • R. J. Behm


The activity and stability of structurally well defined mesoporous Au/TiO2 catalysts with different support morphologies and pore sizes for low temperature CO oxidation was investigated by kinetic measurements and in-situ IR spectroscopy. The resulting catalysts with Au particle sizes of ∼3 nm exhibit a high activity for CO oxidation, similar to or exceeding that of highly active standard Au/TiO2 catalysts with similar size Au nanoparticles and loading, and a significantly lower tendency for deactivation. Possible reasons for the improved performance of these catalysts are discussed.


Mesoporous catalysts Activity Deactivation Au/TiO2 CO oxidation 



This work was supported by the Deutsche Forschungsgemeinschaft within the Priority Programme (SPP) 1181 ‘Nanomat’ (Be 1201/13-1, Hu 1427 1/1 and Ka-1295/5-1).


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Y. Denkwitz
    • 1
  • J. Geserick
    • 2
  • U. Hörmann
    • 3
  • V. Plzak
    • 4
  • U. Kaiser
    • 3
  • N. Hüsing
    • 2
  • R. J. Behm
    • 1
  1. 1.Institute of Surface Chemistry and CatalysisUlm UniversityUlmGermany
  2. 2.Institute of Inorganic Chemistry IUlm UniversityUlmGermany
  3. 3.Central Facility of Electron MicroscopyUlm UniversityUlmGermany
  4. 4.Centre of Solar Energy and Hydrogen ResearchUlmGermany

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