Surface Structures Determined by Kinetic Processes: Adsorption and Diffusion of Oxygen on Pd(100)

  • S.-L. Chang
  • D. E. Sanders
  • J. W. Evans
  • P. A. Thiel
Conference paper
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 11)

Abstract

Atomic oxygen forms a metastable c(2×2) phase on Pd(100) under conditions of rapid adsorption (high pressure) and slow diffusion (low sample temperature). One possible explanation is that oxygen molecules require an 8-fold ensemble of empty sites for dissociative chemisorption, and that subsequent adatom motion is limited and creates no neighboring pairs of filled sites. We describe the properties of the adlayer predicted by such a model.

Keywords

Auger Chemisorption Percolate 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • S.-L. Chang
    • 1
  • D. E. Sanders
    • 1
  • J. W. Evans
    • 1
  • P. A. Thiel
    • 1
  1. 1.Department of Chemistry and Ames LaboratoryIowa State UniversityAmesUSA

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