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  Adsorption on Epitaxial Oxide Films as Model Systems for Heterogeneous Catalysis

Wohlrab, S., Winkelmann, F., Libuda, J., Bäumer, M., Kuhlenbeck, H., & Freund, H.-J. (1996). Adsorption on Epitaxial Oxide Films as Model Systems for Heterogeneous Catalysis. In R. J. MacDonald, E. C. Taglauer, & K. R. Wandelt (Eds.), Surface Science (1. Ed., pp. 193-202). Berlin: Springer.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-0F93-0 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-0F94-F
Genre: Book Chapter

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 Creators:
Wohlrab, S.1, Author
Winkelmann, F.1, Author
Libuda, J.1, Author
Bäumer, M.1, Author
Kuhlenbeck, H.1, Author
Freund, Hans-Joachim2, Author           
Affiliations:
1Department of Physical Chemistry, Ruhr-Universität Bochum, Bochum, Germany, ou_persistent22              
2Ruhr-Universität Bochum, Lehrstuhl für Physikalische Chemie 1, ou_persistent22              

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 Abstract: We have studied the interaction of Pt with Al203(lll)/NiAl(110) and the adsorption of CO on the platinum covered oxide film for different Pt coverages and deposition temperatures. At 300 K the platinum forms a twodimensional layer which is partially ordered. No order within the metal deposit could be observed for deposition at 100 K. On the Pt deposit prepared at room temperature CO dissociation occurs, in contrast to non dissociative CO adsorption on Pt single crystals. With TDS (Thermal Desorption Spectroscopy) an unusual CO desorption signal is observed at T≈ 150 K. Upon annealing at elevated temperature the Pt seems to diffuse into the oxide film or through the oxide film into the NiAl substrate.

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Language(s): eng - English
 Dates: 1996
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/978-3-642-80281-2_16
 Degree: -

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Title: Surface Science
  Subtitle : Principles and Current Applications
Source Genre: Book
 Creator(s):
MacDonald, R. J., Editor
Taglauer, E. C., Editor
Wandelt, K. R., Editor
Affiliations:
-
Publ. Info: Berlin : Springer, 1. Ed.
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 193 - 202 Identifier: -