title: Adsorption of benzene on noble metal surfaces studied by density functional theory with Van der Waals correction.
abstract: We have studied the atomic geometries and the electronic properties of benzene/metal interfaces by using density functional theoretical (DFT) calculations with van der Waals corrections. Adsorption energies of benzene on Cu(111), Ag(111), and Au(111) surfaces calculated by van der Waals density functional proposed by Dion and co-workers agree reasonably well with experimentally reported values, while those calculated by a semi-empirical van der Waals correction proposed by Grimme are overestimated slightly. The work function change induced by benzene adsorption on the three surfaces are quite well reproduced by the semi-empirical correction, suggesting that weak adsorption geometries can be quite well reproduced by DFT with a semi-empirical dispersion correction scheme.
authors.affiliation: The Institute of Scientific and Industrial Research (ISIR), Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Toyoda
authors.forename: Ikutaro
authors.initials: I
authors.lastname: Hamada
authors.forename: Susumu
authors.initials: S
authors.lastname: Yanagisawa
authors.forename: Yoshitada
authors.initials: Y
authors.lastname: Morikawa
mesh_terms: D000327:Adsorption; D001554:Benzene / Q000737:chemistry*; D003198:Computer Simulation; D008670:Metals / Q000737:chemistry*; D008956:Models, Chemical; D005741:Noble Gases / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D008670:Metals; D005741:Noble Gases; D001554:Benzene