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The growth of Pt on clusters on TiO 2 (110) in the presence and absence of Rh was investigated by scanning tunneling microscopy (STM) for Pt deposited on top of 0.3ML Rh clusters (Rh+Pt). In situ STM studies of Pt growth at room temperature show that bimetallic clusters are produced when Pt is directly incorporated into existing Rh clusters or when newly nucleated clusters of pure Pt coalesce...
Scanning tunneling microscopy (STM) investigations of Cu clusters grown on TiO 2 (110)-(1x1) have shown that exposure to oxygen causes small three dimensional (3D) clusters to dissociate into two dimensional (2D) structures at room temperature. Larger Cu clusters do not completely dissociate upon oxygen exposure, but the clusters become smaller. Although Ni is more easily oxidized than Cu,...
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