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The Surface Chemistry of Osmium Carbonyl Clusters Supported on Silica : An XPS Investigation

  • C. Furlani
  • R. Zanoni
  • C. Dossi
  • R. Psaro

Abstract

An XPS investigation on silica-supported Osmium carbonyl clusters is reported. Different sequences of surface reactions have been followed, evi-dentiating structural modifications of the species involved. The assignment of Os surface compound obtained via oxidation or reduction treatments has been proposed on the basis of a previous identification of particular Os 4f binding energy regions for pure molecular compounds. The possibility of a controlled reduction of supported Os species is proposed on the basis of a range of b. e. values obtained for supported bare metal clusters. Results of an extension of present data to a catalytic test of 1-butene iso-merization are discussed.

Keywords

Surface Reaction Catalytic Test Metal Carbonyl Carbonyl Cluster Control Reduction 
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • C. Furlani
    • 1
  • R. Zanoni
    • 1
  • C. Dossi
    • 2
  • R. Psaro
    • 3
  1. 1.Dipartimento di ChimicaUniversità di Roma “La Sapienza”RomaItaly
  2. 2.Dipartimento di Chimica Inorganica e MetallorganicaMilanoItaly
  3. 3.Centro C. N. R.MilanoItaly

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