MIGRATION OF H-ATOMS FROM METAL INTERFACE TO ADSORBED METAL-CARBONYL LAYERS

Authors
HUANG HH SEET CS SREEKANTH CS XU GQ
Citation
Hh. Huang et al., MIGRATION OF H-ATOMS FROM METAL INTERFACE TO ADSORBED METAL-CARBONYL LAYERS, Surface science, 348(1-2), 1996, pp. 192-196
Citations number
26
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
348
Issue
1-2
Year of publication
1996
Pages
192 - 196
Database
ISI
SICI code
0039-6028(1996)348:1-2<192:MOHFMI>2.0.ZU;2-K
Abstract
The interaction of Fe(CO)(5) with H-adatoms was studied on a Ru(001) s urface by thermal desorption spectroscopy. The desorption spectra show ed, in addition to the normal hydrogen desorption peak from the Ru(001 ) surface, two low temperature sharp peaks at 160 and 190 K coinciding with the peaks due to the molecular desorption of Fe(CO)(5). This is explained by a model suggesting the migration of H-adatoms into the mu ltilayers of Fe(CO)(5) due to either the repulsive interaction between H-adatoms and CO formed by the decomposition of Fe(CO)(5) on Ru(001) or the attractive interaction between H-adatoms and Fe(CO)(5) molecule s.