2026-04-17T01:01:18Zhttps://recercat.cat/oai/requestoai:recercat.cat:2445/132622025-12-04T21:00:21Zcom_2072_1057col_2072_478796col_2072_478917
RECERCAT
author
Wahlstrom, E.
author
López, Núria (López Alonso)
author
Schaub, R.
author
Tostrup, P.
author
Rønnau, A.
author
Africh, C.
author
Nørskov, Jens K.
author
Laegsgaard, E.
author
Besenbacher, F.
2010-07-05T09:11:49Z2010-07-05T09:11:49Z2003
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.
(c) American Physical Society, 2003 info:eu-repo/semantics/openAccess
Pel·lícules fines
Química de superfícies
Metalls
Propietats físiques
Thin films
Surface chemistry
Metals
Physical properties
Bonding of gold nanoclusters to oxygen vacancies on rutile TiO2(110)
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion