TY - JOUR
T1 - The surface oxide as a source of oxygen on Rh(1 1 1)
AU - Lundgren, Edvin
AU - Gustafson, Johan
AU - Resta, Andrea
AU - Weissenrieder, J
AU - Mikkelsen, Anders
AU - Andersen, Jesper N.
AU - Koehler, Lukas
AU - Kresse, Georg
AU - Klikovits, J
AU - Biederman, A
AU - Schmid, Michael A.
AU - Varga, Peter
N1 - DOI: 10.1016/j.elspec.2005.01.004
Coden: JESRA
Affiliations: Dept. of Synchrt. Radiation Research, Institute of Physics, Lund University, Box 118, S-221 00 Lund, Sweden; Inst. F. Materialphysik Ctr. C., Universität Wien, A-1090 Wien, Austria; Institut Für Allgemeine Physik, Technische Universität Wien, A-1040 Wien, Austria
Adressen: Lundgren, E.; Dept. of Synchrt. Radiation Research; Institute of Physics; Lund University, Box 118 S-221 00 Lund, Sweden; email: [email protected]
Import aus Scopus: 2-s2.0-20244376330
22.10.2007: Datenanforderung 1935 (Import Sachbearbeiter)
22.10.2007: Datenanforderung 1936 (Import Sachbearbeiter)
PY - 2005/6
Y1 - 2005/6
N2 - The reduction of a thin surface oxide on the Rh(1 1 1) surface by CO is studied in situ by photoemission spectroscopy, scanning tunneling microscopy, and density functional theory. CO molecules are found not to adsorb on the surface oxide at a sample temperature of 100 K, in contrast to on the clean and chemisorbed oxygen covered surface. Despite this behavior, the surface oxide may still be reduced by CO, albeit in a significantly different fashion as compared to the reduction of a phase containing only chemisorbed on surface oxygen. The experimental observations combined with theoretical considerations concerning the stability of the surface oxide, result in a model of the reduction process at these pressures suggesting that the surface oxide behaves as a source of oxygen for the CO-oxidation reaction. Π2005 Elsevier B.V. All rights reserved.
AB - The reduction of a thin surface oxide on the Rh(1 1 1) surface by CO is studied in situ by photoemission spectroscopy, scanning tunneling microscopy, and density functional theory. CO molecules are found not to adsorb on the surface oxide at a sample temperature of 100 K, in contrast to on the clean and chemisorbed oxygen covered surface. Despite this behavior, the surface oxide may still be reduced by CO, albeit in a significantly different fashion as compared to the reduction of a phase containing only chemisorbed on surface oxygen. The experimental observations combined with theoretical considerations concerning the stability of the surface oxide, result in a model of the reduction process at these pressures suggesting that the surface oxide behaves as a source of oxygen for the CO-oxidation reaction. Π2005 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.elspec.2005.01.004
DO - 10.1016/j.elspec.2005.01.004
M3 - Meeting abstract/Conference paper
SN - 0368-2048
VL - 144-147
SP - 367
EP - 372
JO - Journal of Electron Spectroscopy and Related Phenomena
JF - Journal of Electron Spectroscopy and Related Phenomena
T2 - 14th International Conference on Vacuum Ultraviolet Radiation Physics
Y2 - 19 July 2004 through 23 July 2004
ER -