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  Evidence of stable high-temperature Dx-CO intermediates on the Ru(0001) surface

Ueta, H., Groot, I., Juurlink, L. B. F., Kleyn, A. W., & Gleeson, M. A. (2012). Evidence of stable high-temperature Dx-CO intermediates on the Ru(0001) surface. The Journal of Chemical Physics, 136(11): 114710. doi:10.1063/1.3689553.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-50D4-C Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-50D5-A
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 Urheber:
Ueta, Hirokazu1, 2, Autor
Groot, Irene3, 4, Autor           
Juurlink, Ludo B. F.3, Autor
Kleyn, Aart W.1, 3, 5, Autor
Gleeson, Michael A.1, Autor
Affiliations:
1FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands , ou_persistent22              
2Laboratoire Chimie Physique Moléculaire, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland , ou_persistent22              
3Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands , ou_persistent22              
4Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              
5Van‘t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, 1090 GD Amsterdam, The Netherlands , ou_persistent22              

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 Zusammenfassung: We demonstrate the formation of complexes involving attractive interactions between D and CO on Ru(0001) that are stable at significantly higher temperatures than have previously been reported for such intermediate species on this surface. These complexes are evident by the appearance of new desorption features upon heating of the sample. They decompose in stages as the sample temperature is increased, with the most stable component desorbing at >500 K. The D:CO ratio remaining on the surface during the final stages of desorption tends towards 1:1. The new features are populated during normally incident molecular beam dosing of D₂ on to CO pre-covered Ru(0001) surfaces (180 K) when the CO coverage exceeds 50% of the saturation value. The amount of complex formed decreases somewhat with increasing CO pre-coverage. It is almost absent in the case of dosing on to the fully saturated surface. The results are interpreted in terms of both local and long-range rearrangements of the overlayer that give rise to the observed CO coverage dependence and limit the amount of complex that can be formed.

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Sprache(n): eng - English
 Datum: 2011-12-152012-02-092012-03-212012-03-21
 Publikationsstatus: Erschienen
 Seiten: 6
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1063/1.3689553
 Art des Abschluß: -

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Titel: The Journal of Chemical Physics
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 136 (11) Artikelnummer: 114710 Start- / Endseite: - Identifikator: ISSN: 1520-9032
CoNE: https://pure.mpg.de/cone/journals/resource/991042752807952