Adsorption of Methanol on Aluminum Oxide: A Density Functional Study

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dc.creatorBorck, Oyvind
dc.creatorSchroder, Elsebeth
dc.date2003-07-02
dc.date.accessioned2026-07-07T02:52:09Z
dc.date.available2026-07-07T02:52:09Z
dc.descriptionTheoretical calculations based on density functional theory have made significant contributions to our understanding of metal oxides, their surfaces, and the binding of molecules at these surfaces. In this paper we investigate the binding of methanol at the alpha-Al2O3(0001) surface using first-principles density functional theory. We calculate the molecular adsorption energy of methanol to be E^g_ads=1.03 eV/molecule. Taking the methanol-methanol interaction into account, we obtain the adsorption energy E_ads=1.01 eV/molecule. Our calculations indicate that methanol adsorbs chemically by donating electron charge from the methanol oxygen to the surface aluminum. We find that the surface atomic structure changes upon adsorption, most notably the spacing between the outermost Al and O layers changes from 0.11 Angstrom to 0.33 Angstrom.
dc.description11 pages, 3 figures, 1 table
dc.identifierhttps://arxiv.org/abs/cond-mat/0307039
dc.identifierhttp://arxiv.org/abs/cond-mat/0307039
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21735
dc.subjectMaterials Science
dc.subjectSoft Condensed Matter
dc.titleAdsorption of Methanol on Aluminum Oxide: A Density Functional Study
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