Hydrogenation activities, hydrous titanium

Anthony and Dosch [1, 2] prepared a series of new crystalline titanates (CT) by modifying the procedure used to prepare hydrous titanium oxide. CT with basal spacings of 1.0, 1.17, and 1.6 nm were prepared. The catalytic activities of Pd supported catalysts were varied depending on the type of CT. One labelled as type 2 titanate, when used as a precursor in the preparation of a supported Pd catalyst, had the highest activity for hydrogenation of pyrene and 1-hexene among these Pd supported CT. However, CT were not thermally stable as... 

A series of new crystalline titanates (CT) are shown to have considerable potential as catalysts supports. For Pd supported catalysts, the catalytic activity for pyrene hydrogenation was substaniatially different depending on the type of CT, and one was substantially more active than Pd on hydrous titanium oxide (HTO). For 1-hexene hydrogenation the activities of the new CTs were approximately the same as for the hydrous metal oxide siqtports. Stereochemical effects, such as shape selective catalysis, ars to be occurring when pyrene is hydrogenated. 

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