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Short‐Range Interactions in Na Coadsorption with CO and O on Ni(111)
Author(s) -
Politano Antonio,
Agostino Raffaele G.,
Formoso Vincenzo,
Chiarello Gennaro
Publication year - 2008
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800073
Subject(s) - electron energy loss spectroscopy , alkali metal , stoichiometry , chemistry , spectroscopy , range (aeronautics) , spectral line , analytical chemistry (journal) , crystallography , materials science , nanotechnology , transmission electron microscopy , physics , organic chemistry , chromatography , quantum mechanics , astronomy , composite material
The coadsorption of Na with CO and O on Ni(111) is studied by high‐resolution electron energy loss spectroscopy. Experimental evidence for a very short‐range interaction between Na and coadsorbates is reported, in contrast with recent theoretical predictions overestimating nonlocal alkali‐induced effects. Loss spectra show distinct features, as a consequence of different local [CO]:[Na] and [O]:[Na] stoichiometries.