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Title: Migration of H-atoms from metal interface to adsorbed metal carbonyl layers
Authors: Huang, H.H. 
Seet, C.S.
Sreekanth, C.S. 
Xu, G.Q. 
Keywords: Diffusion and migration
Iron pentacarbonyl
Single crystal surfaces
Thermal desorption spectroscopy
Issue Date: 1-Mar-1996
Citation: Huang, H.H.,Seet, C.S.,Sreekanth, C.S.,Xu, G.Q. (1996-03-01). Migration of H-atoms from metal interface to adsorbed metal carbonyl layers. Surface Science 348 (1-2) : 192-196. ScholarBank@NUS Repository.
Abstract: The interaction of Fe(CO)5 with H-adatoms was studied on a Ru(001) surface by thermal desorption spectroscopy. The desorption spectra showed, 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 multilayers 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 molecules.
Source Title: Surface Science
ISSN: 00396028
Appears in Collections:Staff Publications

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