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          Institute: Fritz-Haber-Institut     Collection: Physical Chemistry     Display Documents



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ID: 289289.0, Fritz-Haber-Institut / Physical Chemistry
Dissociation of CO on the Ru(1 1 -2 0) surface
Authors:Wang, Jinhai; Wang, Yuemin; Jacobi, Karl
Language:English
Date of Publication (YYYY-MM-DD):2001-08-01
Title of Journal:Surface Science
Journal Abbrev.:Surf. Sci.
Volume:488
Issue / Number:1-2
Start Page:83
End Page:89
Copyright:© 2001 Elsevier Science B.V. All rights reserved.
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:The dissociation of CO on the Ru(11-20) surface was investigated by thermal desorption spectroscopy and high resolution electron energy loss spectroscopy (HREELS). Up to about 20% of a monolayer CO dissociates on the Ru(11-20) surface at room temperature. Oxygen (68 meV) and carbon (42 meV) are identified as dissociation products by HREELS. At temperatures below 240 K the precursor of dissociation can be stabilized. In this state, CO is tilted and presumably bonded at a kind of a fourfold hollow site. During annealing, CO2 formation is observed from CO reacting with oxygen from the dissociation.
Free Keywords:Electron energy loss spectroscopy (EELS); Thermal desorption spectroscopy; Chemisorption; Surface chemical reaction; Ruthenium; Carbon monoxide; Single crystal surfaces
External Publication Status:published
Document Type:Article
Communicated by:Gerhard Ertl
Affiliations:Fritz-Haber-Institut/Physical Chemistry
Identifiers:URL:http://www.sciencedirect.com/science?_ob=ArticleUR...
DOI:10.1016/S0039-6028(01)01108-6
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