caa a22 4500 475844491 CHVBK 20180406123910.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1023/A:1009068418824 doi (NATIONALLICENCE)springer-10.1023/A:1009068418824 Wolf E.E. Chemical Engineering Department, University of Notre Dame, 46556, Notre Dame, IN, USA aut Activity and characterization of Pd thin films, microfabricated dots, and cluster based model catalysts [Elektronische Daten] [E.E. Wolf] The use of various model catalysts' configurations is illustrated to study the relation between catalytic activity and surface structure. The hydrogenation of 1,3‐butadiene is used as a test reaction to correlate kinetic parameters with catalysts' properties. The first model catalysts studied were Pd thin films. STM and XPS were used to characterize the catalyst and correlate the effect of sulfur poisoning with catalytic activity. It was found that the kinetic parameters depended on both the sulfur content and surface morphology. It is speculated that morphological changes caused by sulfur reconstruction change the distribution of active sites. The second model catalyst was a microfabricated catalyst consisting of a regular array of catalytic dots. Dots with different compositions were prepared to study the effect of Pd-Au alloys on activity. It was found that addition of gold decreased the activation energy and reduced the number of active sites by diluting the surface. The third type of model catalysts studied are catalysts derived from molecular clusters of clusters which have a well defined structure and composition. Upon pyrolysis, these materials decompose and form self‐supported porous bimetallic catalysts. It was found that the activity and selectivity of these materials varied with the structure of the precursor as well as with the temperature used to decompose them. These type of model catalysts provide a novel route to design new catalysts. Kluwer Academic Publishers, 2000 palladium nationallicence thin films nationallicence microfabrication nationallicence molecular clusters nationallicence Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 13/1-2(2000-07-01), 21-32 1022-5528 13:1-2<21 2000 13 11244 https://doi.org/10.1023/A:1009068418824 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009068418824 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Wolf E.E. Chemical Engineering Department, University of Notre Dame, 46556, Notre Dame, IN, USA aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 13/1-2(2000-07-01), 21-32 1022-5528 13:1-2<21 2000 13 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer