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Adsorption of Dimers at Surfaces

✍ Scribed by D.-W. Wu; G.L. Aranovich; M.D. Donohue

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
155 KB
Volume
212
Category
Article
ISSN
0021-9797

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✦ Synopsis

A model for the adsorption of dimers at a surface is presented. The model is based on a generalization of the Ono-Kondo lattice theory. The densities of dimer molecules that are parallel to the surface, x parallel, and perpendicular to the surface, x perpendicular, are calculated. It is shown that symmetric dimer molecules adsorb preferentially parallel to the surface at all densities. The model also predicts that the Gibbs adsorption is negative for small interaction energies between dimers and the surface. Copyright 1999 Academic Press.

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