The effects of alkylidyne and atomic oxygen overlayers on the dynamics of adsorption of methane on Pt(111)

The dynamics of the trapping of methane on p(2×2)-oxygen, -ethylidyne, -butylidyne and -isobutylidyne overlayers on Pt(111) at 50 K was investigated using supersonic molecular-beam techniques. Since each of these adsorbates forms the same structure, trapping dynamics could be studied as a function o...

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Bibliographic Details
Published in:Surface science 2000-12, Vol.469 (1), p.21-35
Main Authors: Carlsson, A.F, Madix, R.J
Format: Article
Language:English
Subjects:
Alkanes
Chemistry
Energy dissipation
Exact sciences and technology
General and physical chemistry
Molecule–solid scattering and diffraction–inelastic
Oxygen
Physical adsorption
Platinum
Solid-gas interface
Sticking
Surface physical chemistry
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Summary:The dynamics of the trapping of methane on p(2×2)-oxygen, -ethylidyne, -butylidyne and -isobutylidyne overlayers on Pt(111) at 50 K was investigated using supersonic molecular-beam techniques. Since each of these adsorbates forms the same structure, trapping dynamics could be studied as a function of the internal structure of the adsorbate. Trapping probabilities on these surfaces at a fixed incident energy and angle increase in the order oxygen
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(00)00762-7