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The surface geometry of carbon monoxide and oxygen co-adsorbed on Ni{111}

Braun, W., Steinruck, H.P. and Held, G. (2004) The surface geometry of carbon monoxide and oxygen co-adsorbed on Ni{111}. Zeitschrift fur Physikalische Chemie-International, 218 (8). pp. 915-927. ISSN 0942-9352

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To link to this item DOI: 10.1524/zpch.218.8.915.35977


Low energy electron diffraction (LEED) structure determinations have been performed for the p(2 x 2) structures of pure oxygen and oxygen co-adsorbed with CO on Ni{111}. Optimisation of the non-geometric parameters led to very good agreement between experimental and theoretical IV-curves and hence to a high accuracy in the structural parameters. In agreement with earlier work atomic oxygen is found to adsorb on fee sites in both structures. In the co-adsorbed phase CO occupies atop sites. The positions of the substrate atoms are almost identical, within 0.02 Angstrom, in both structures, implying that the interaction with oxygen dominates the arrangement of Ni atoms at the surface.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:16695

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