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Model Catalysts: The Local Properties of Specific Surface Sites

  • K. Wandelt
Part of the Springer Proceedings in Physics book series (SPPHY, volume 73)

Abstract

Real catalyst surfaces are very complex and heterogeneous with a broad distribution of structurally and chemically different sites. In the process of heterogeneous catalysis some of these sites may behave as particularly “active sites” in the sense that their presence is responsible for a high yield and/or a high selectivity of a desired reaction product. In order to optimize the activity of such catalyst two aspects are important, namély the knowledge of the specific physical properties which distinguish these “active sites” from those of the remaining surface, and the know-how to prepare surfaces with a high and stable density of such sites. The first point is more analytical in nature, while the second aspect is mainly an engineering problem. This paper aims at making a contribution to the characterization of the local physical properties of distinct surface sites.

Keywords

Step Edge Alkali Metal Atom Electron Binding Energy Step Site Valence Band Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • K. Wandelt
    • 1
  1. 1.Institute of Physical and Theoretical ChemistryUniversity of BonnBonn 1Germany

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