R Franchy et al 2000 J. Phys.: Condens. Matter 12 R53 doi:10.1088/0953-8984/12/6/201
Negative ion resonances of O2 adsorbed on Ag surfaces
REVIEW ARTICLER Franchy
, F Bartolucci, F Buatier de Mongeot
, F Cemic, M Rocca, U Valbusa, L Vattuone, S Lacombe§, K Jacobi§, K B K Tang||, R E Palmer||, J Villette¶, D Teillet-Billy¶ and J P Gauyacq¶
REVIEW ARTICLE
This article gathers together a collection of recent experimental studies of the adsorption of oxygen on (001), (110) and (111) crystal surfaces of silver with special emphasis on the negative ion states of this model system for oxygen adsorption. These investigations were performed in a network entitled `Negative ion resonances of adsorbed molecules' supported financially by the European Union within the `Human capital and mobility programme'. The kinetics and thermodynamics of adsorption are investigated by measuring the sticking coefficient and by thermal desorption spectroscopy (TDS). The vibrational spectra provided by high-resolution electron energy loss spectroscopy (HREELS) are used to analyse the adsorbed species (physisorbed and chemisorbed) in the case of O2 on Ag(110) and on Ag(111). The mechanisms of inelastic electron scattering by adsorbed O2 are further investigated with special reference to the negative ion resonances (NIRs), formed by electron capture, which are involved in the electron-molecule collision process.
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Issue 6 (14 February 2000)
Received 16 July 1999, in final form 26 October 1999
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Negative ion resonances of O2 adsorbed on Ag surfaces
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