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STM images of the anatase(101) surface after deposition of 0.004 ML Pt. Inset and line profiles at the bottom show that Pt clusters at step edges are mostly located at the upper terraces, with kink sites being preferred nucleation sites (see black arrows). Clusters in the insets (i–iii) were tentatively assigned as a (i) Pt monomer, (ii) Pt dimer, and (iii) Pt trimer. Reprinted with permission from ref (77). Copyright 2008 American Chemical Society.
