Interaction of oxygen with a Mo(111) surface

Oxygen adsorption on a Mo(111) surface is investigated at low pressures (10 −7 to 10 −5 Pa) and room temperature by Auger electron spectroscopy (AES), low-energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS) and ultra-violet photoelectron spectroscopy (UPS). In agreement with p...

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Bibliographic Details
Published in:Surface science 1985-12, Vol.164 (1), p.196-208
Main Authors: Marinova, Ts.S., Stefanov, P.K., Neshev, N.
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
General and physical chemistry
Materials science
Metals, semimetals and alloys
Metals. Metallurgy
Physics
Solid-gas interface
Specific materials
Surface physical chemistry
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Summary:Oxygen adsorption on a Mo(111) surface is investigated at low pressures (10 −7 to 10 −5 Pa) and room temperature by Auger electron spectroscopy (AES), low-energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS) and ultra-violet photoelectron spectroscopy (UPS). In agreement with previous studies it is established that the surface is not reconstructed during adsorption and the oxygen forms no ordered structures. On the basis of kinetic and spectroscopy data, the formation of two adsorption states on the surface within 1 monolayer is established. The valence band of a clean surface is studied in detail. An attempt is made to ascribe the peaks obtained to definite d states. The interaction between O 2 and Mo(111) is discussed in terms of the results obtained and a comparison with the O 2/W(111) system is made.
ISSN:0039-6028
1879-2758
DOI:10.1016/0039-6028(85)90707-1