A brief review of current techniques useful in the characterization of supported bimetallic clusters is discussed. The identification of mixed metal surface sites using EXAFS, XRD, IR and Mössbauer spectroscopy is considered. The measurement of surface composition using selective chemisorption and selective titration methods is discussed with particular emphasis on Group VIII-Group IB bimetallic clusters and the Group VIII noble metal bimetallics. The effect of support on the surface composition of supported Pt-Ru bimetallic clusters is considered. Finally, a series of selected catalytic reactions studied on well-defined supported bimetallic clusters is discussed. Particular emphasis is on hydrogenolysis, cyclohexane dehydrogenation, methanation and Fisher-Tropsch reactions. © 1984.
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