COLL 79 |
| Bruce C. Gates, Dept. of Chemical Engineering and Materials Science, Dept. of Chemical Engineering and Materials Science, University of California, One Shields Avenue, Davis, CA 95616 |
| Adsorption or surface-mediated synthesis of metal carbonyl clusters such as Ir4(CO)12 on oxides and in zeolite cages affords methods for the preparation of structurally simple and nearly uniform cluster catalysts. Examples include clusters of only a few atoms consisting of Rh, Ir, or Os, as well as bimetallics. Because of their near uniformity, these clusters offer opportunities for fundamental understanding of metal–support interactions and structure–property relationships in catalysis, as well as prospects for new catalytic properties. Bimetallics with oxophilic/noble metal combinations offer highly stable supported clusters, as the oxophilic metal in a cationic state anchors the noble metal cluster to the support. |
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The Science and Engineering of Catalyst Preparation
2:00 PM-5:25 PM, Sunday, March 28, 2004 Marriott -- Orange County 3, Oral
Division of Colloid and Surface Chemistry |