Catalysis by Supported Gold Nanoclusters


D. Wayne Goodman Department of Chemistry, Texas A&M University

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The physical and chemical properties of supported Au clusters are markedly sensitive to cluster size and morphology. To investigate the origin of the unique properties of nanosized Au clusters, model catalysts consisting of Au clusters of varying sizes have been prepared on single crystal TiO2(110) and ultrathin films of single crystalline TiO2, SiO2, and Al2O3. The morphology, electronic structure, and catalytic properties of these supported Au clusters have been investigated using an array of surface analytical techniques with particular emphasis to the unique properties of clusters < 5.0 nm in size. These studies illustrate the novel and unique physical and chemical properties of nanosized supported metal clusters.