INTERACTION OF CARBON-MONOXIDE WITH A PLATINUM(0.25)-RHODIUM(0.75)(111) SINGLE-CRYSTAL SURFACE

Authors
RUTTEN FJM NIEUWENHUYS BE MCCOUSTRA MRS CHESTERS MA HOLLINS P
Citation
Fjm. Rutten et al., INTERACTION OF CARBON-MONOXIDE WITH A PLATINUM(0.25)-RHODIUM(0.75)(111) SINGLE-CRYSTAL SURFACE, Journal of vacuum science & technology. A. Vacuum, surfaces, and films, 15(3), 1997, pp. 1619-1623
Citations number
37
Categorie Soggetti
Physics, Applied","Materials Science, Coatings & Films
Journal title
Journal of vacuum science & technology. A. Vacuum, surfaces, and films → ACNP
ISSN journal
07342101
Volume
15
Issue
3
Year of publication
1997
Part
2
Pages
1619 - 1623
Database
ISI
SICI code
0734-2101(1997)15:3<1619:IOCWAP>2.0.ZU;2-U
Abstract
The adsorption of carbon monoxide on a platinum-rhodium alloy (111) si ngle crystal surface was studied with a combination of reflection abso rption infrared spectroscopy, thermal desorption spectroscopy, and wor k function change measurements. It was found that CO shows a pronounce d preference for adsorption on Rh sites both at 100 K and room tempera ture, up to a coverage at which available next-nearest neighbor Rh sit es were filled. Adsorption was found to be predominantly in atop sites and only weak bridge bands were detected at 100 and 300 K. (C) 1997 A merican Vacuum Society.