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Bonding of gold nanoclusters to oxygen vacancies on rutile TiO2(110)

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dc.creator Wahlstrom, E.
dc.creator López, Núria (López Alonso)
dc.creator Schaub, R.
dc.creator Tostrup, P.
dc.creator Rønnau, A.
dc.creator Africh, C.
dc.creator Nørskov, Jens K.
dc.creator Laegsgaard, E.
dc.creator Besenbacher, F.
dc.date 2010-07-05T09:11:49Z
dc.date 2010-07-05T09:11:49Z
dc.date 2003
dc.date.accessioned 2024-12-16T10:24:18Z
dc.date.available 2024-12-16T10:24:18Z
dc.identifier 0031-9007
dc.identifier http://hdl.handle.net/2445/13262
dc.identifier 510199
dc.identifier.uri http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/17445
dc.description Through an interplay between scanning tunneling microscopy (STM) and density functional theory (DFT) calculations, we show that bridging oxygen vacancies are the active nucleation sites for Au clusters on the rutile TiO2(110) surface. We find that a direct correlation exists between a decrease in density of vacancies and the amount of Au deposited. From the DFT calculations we find that the oxygen vacancy is indeed the strongest Au binding site. We show both experimentally and theoretically that a single oxygen vacancy can bind 3 Au atoms on average. In view of the presented results, a new growth model for the TiO2(110) system involving vacancy-cluster complex diffusion is presented.
dc.format 4 p.
dc.format application/pdf
dc.language eng
dc.publisher American Physical Society
dc.relation Reproducció digital del document proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevLett.90.026101
dc.relation Physical Review Letters, 2003, vol. 90, nú. 2, p. 026101-1-026101-4
dc.relation http://dx.doi.org/10.1103/PhysRevLett.90.026101
dc.rights (c) American Physical Society, 2003
dc.rights info:eu-repo/semantics/openAccess
dc.source Articles publicats en revistes (Ciència dels Materials i Química Física)
dc.subject Pel·lícules fines
dc.subject Química de superfícies
dc.subject Metalls
dc.subject Propietats físiques
dc.subject Thin films
dc.subject Surface chemistry
dc.subject Metals
dc.subject Physical properties
dc.title Bonding of gold nanoclusters to oxygen vacancies on rutile TiO2(110)
dc.type info:eu-repo/semantics/article
dc.type info:eu-repo/semantics/publishedVersion


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