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Journal Article

Negative ion resonances of O2 adsorbed on Ag surfaces

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Lacombe,  S.
Fritz Haber Institute, Max Planck Society;

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Jacobi,  Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Franchy, R., Bartolucci, F., Buatier de Mongeot, F., Cemic, F., Rocca, M., Valbusa, U., et al. (2000). Negative ion resonances of O2 adsorbed on Ag surfaces. Journal of Physics: Condensed Matter, 12(6), R53-R82. doi:10.1088/0953-8984/12/6/201.


Cite as: https://hdl.handle.net/21.11116/0000-0009-476D-E
Abstract
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.