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  Interaction of NO with the O-rich RuO2(110) surface at 300 K

Jacobi, K., & Wang, Y. (2009). Interaction of NO with the O-rich RuO2(110) surface at 300 K. Surface Science, 603(10-12), 1600-1604. doi:10.1016/j.susc.2008.09.047.

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 Urheber:
Jacobi, Karl1, Autor           
Wang, Yuemin1, Autor           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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Schlagwörter: High-resolution electron energy-loss spectroscopy (HREELS); Thermal desorption spectroscopy; Chemisorption; Surface chemical reaction; Ruthenium oxide; Oxygen; Nitrogen oxides
 Zusammenfassung: The interaction of NO with the O-rich RuO2(1 1 0) surface, exposing coordinatively unsaturated O-bridge, O-cus, and Ru-cus atoms, was studied at 300 K by thermal desorption spectroscopy (TDS) and high-resolution electron energy-loss spectroscopy (HREELS). The conclusions are validated by isotope substitution experiments with 18O. During exposure to NO an O···N–O surface group (NO2-cus) is formed with O-cus. Additionally, a smaller number of empty Ru-cus sites are filled by NO-cus. If one warms the sample to 400 K, NO2-cus does not desorb but decomposes into O and NO again, the latter being either released into gas phase or adsorbed as NO-cus. With O-bridge such a surface group is not stable at 300 K. Our experiments further prove that O-cus is more reactive than O-bridge.

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Sprache(n): eng - English
 Datum: 2009-06-01
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 429892
DOI: 10.1016/j.susc.2008.09.047
 Art des Abschluß: -

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Titel: Surface Science
  Alternativer Titel : Surf. Sci.
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 603 (10-12) Artikelnummer: - Start- / Endseite: 1600 - 1604 Identifikator: -