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  Adsorption and reaction of molecules on surfaces of metal-metal oxide systems

Freund, H.-J., Dillmann, B., Ehrlich, D., Haßel, M., Jaeger, R., Kuhlenbeck, H., et al. (1993). Adsorption and reaction of molecules on surfaces of metal-metal oxide systems. Journal of Molecular Catalysis, 82(2-3), 143-169. doi:10.1016/0304-5102(93)80030-X.

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Freund, Hans-Joachim1, Author                 
Dillmann, B., Author
Ehrlich, D., Author
Haßel, M., Author
Jaeger, R.M., Author
Kuhlenbeck, H., Author
Ventrice, C.A., Author
Winkelmann, F., Author
Wohlrab, S., Author
Xu, C., Author
Bertrams, Th., Author
Brodde, A., Author
Neddermeyer, H., Author
Affiliations:
1Ruhr-Universität Bochum, Lehrstuhl für Physikalische Chemie 1, ou_persistent22              

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 Abstract: Molecular adsorption on oxide surfaces is gaining increasing interest both experimentally and theoretically. Adsorption studies on model systems, where well ordered thin oxide films grown on a metal substrate to avoid sample charging in connection with electron spectroscopic measurements, were used, are reported. Two oxide systems are compared: (i) a reactive transition metal oxide surface of Cr2O3(111) where it is shown that the surface contains Cr2+ ions which trigger its reactivity; (ii) a non-reactive simple metal oxide surface of γ-Al2O3(111) which is used as a support model surface. The adsorption of various molecules on both surfaces has been examined, and how the properties of the surface are modified when metals are deposited on the oxide surface have been studied. The results of alkali metal deposits on Cr2O3(111) and Pt deposits on γ-Al2O3(111) are presented. The applied methods include LEED, STM, TPD, ARUPS, ELS, XPS, HREELS and ISS.

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Language(s): eng - English
 Dates: 1993-06-29
 Publication Status: Issued
 Pages: 27
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/0304-5102(93)80030-X
 Degree: -

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Title: Journal of Molecular Catalysis
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 27 Volume / Issue: 82 (2-3) Sequence Number: - Start / End Page: 143 - 169 Identifier: ISSN: 0304-5102