title: Coadsorption of lithium and oxygen on W(1 1 2): nanosized facets versus single crystals.
abstract: Coadsorption of lithium and oxygen on a nanosized W-tip is studied using field ion appearance energy spectroscopy (FIAES). Binding energies of coadsorbed Li-adatoms are derived locally for chosen atomic sites on (1 1 2) facets for different oxygen and Li-coverages. Independently, the binding energies of Li-adatoms in coadsorbed Li/oxygen layers are determined for macroscopic W(1 1 2) single crystal samples from the adsorption isobars in adsorption-desorption equilibrium experiments and compared with the local nm-scale measurements. The comparison reveals a very good agreement of results obtained by two different methods on differing length scales.
authors.affiliation: Institute of Materials Chemistry, Vienna University of Technology, Getreiedemarkt 9, A-1060 Vienna, Austria. yuri.suchorski@imc.tuwien.ac.at
authors.forename: Y
authors.initials: Y
authors.lastname: Suchorski
authors.forename: M S
authors.initials: MS
authors.lastname: Hupalo