2026-04-17T00:48:35Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/132622025-12-04T21:00:21Zcom_2072_1057col_2072_478796col_2072_478917

00925njm 22002777a 4500 dc 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. author 2010-07-05T09:11:49Z 2010-07-05T09:11:49Z 2003 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. 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)