SIMS/XPS Studies of Surface Reactions on Rh(111) and Rh(331)

  • E. White
  • L. A. DeLouise
  • N. Winograd
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 44)

Abstract

The adsorption of NO and HCN on Rh surfaces can be monitored using the Rh2NO+ or RhHCN+ molecular cluster ions formed in static SIMS. From parallel XPS studies, for example, we find that NO adsorbs molecularly at 300K on Rh(111) but dissociates significantly on the Rh(331) surface. This dissociation is accompanied by a decrease in the Rh2NO+ ion yield and an increase in the Rh2N+ and Rh2O+ ion intensities. This type of chemical specificity illustrates that SIMS studies are possible on more complex systems which are difficult to monitor using XPS alone.

Keywords

Cyanide Rhodium 

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References

  1. 1.
    L.A. DeLouise and N. Winograd: Surf. Sci., 159, 199 (1985).ADSCrossRefGoogle Scholar
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    D.G. Castner and G.A. Somorjai: Surf.Sci. 83, 60 (1979).ADSCrossRefGoogle Scholar
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    L.A. DeLouise and N. Winograd: Surf. Sci. 154, 79 (1985).ADSCrossRefGoogle Scholar
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    F.P. Netzer: Surf. Sci. 61. 343 (1976).ADSCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • E. White
    • 1
  • L. A. DeLouise
    • 1
  • N. Winograd
    • 1
  1. 1.Department of ChemistryThe Pennsylvania State UniversityUniversity ParkUSA

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