Sulphur dioxide adsorption on the Ni(110) surface
Zebisch P, Weinelt M, Steinrück HP (1993)
Publication Type: Journal article, Original article
Publication year: 1993
Journal
Original Authors: Zebisch P., Weinelt M., Steinrück H.-P.
Publisher: Elsevier
Book Volume: 295
Pages Range: 295-305
Journal Issue: 3
URI: https://www.scopus.com/record/display.uri?eid=2-s2.0-0027678739&origin=inward
Abstract
The adsorption of SO on Ni(110) has been studied in detail by temperature programmed desorption (TPD), low energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), and angle resolved UV photoelectron spectroscopy (ARUPS) using linearly polarized synchrotron radiation. At 100 K SO is found to chemisorb in molecular form on Ni(110) with a saturation coverage of 0.5 ML (1 ML = 1 molecule Ni-atom). The saturated chemisorbed layer exhibits a c(2 × 2) LEED pattern. At initial coverages below 0.25 ML, SO completely decomposes upon heating to 750 K; for higher coverages molecular SO desorption is also observed in a single peak between 300 and 400 K. From the angle resolved UPS spectra and symmetry selection rules we deduce the symmetry of the adsorbed SO molecules for low coverages as C (σ), with the molecular O-S-O plane oriented perpendicular to the surface and aligned along the [001] azimuth (perpendicular to the close-packed substrate rows). Within the plane the molecule is tilted, which is attributed to an additional Ni-O interaction. In the saturated layer the symmetry is further reduced to C indicating an additional tilting and/or rotation of the molecular plane with respect to the substrate. © 1993.
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Germany (DE)How to cite
APA:
Zebisch, P., Weinelt, M., & Steinrück, H.-P. (1993). Sulphur dioxide adsorption on the Ni(110) surface. Surface Science, 295(3), 295-305.
MLA:
Zebisch, P., M. Weinelt, and Hans-Peter Steinrück. "Sulphur dioxide adsorption on the Ni(110) surface." Surface Science 295.3 (1993): 295-305.
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