Zirconium hydrogenation catalysis

The properties of a- or y- zirconium hydrogen phosphate, a synthetic inorganic ion-exchanger material with layered structure, as "heterogenizing" support for carbonylation reactions are still to be studied. Our first studies in this field showed that the Pd(II)-2,2 -bipyridyl complex intercalated in these materials catalyzes the oxidative carbonylation of aniline even though its activity falls with time, because the support slowly loses palladium and deactivates during the catalysis process [2]. 

Velu, S. and Suzuki, K. Selective production of hydrogen for fuel cells via oxidative steam reforming of methanol over CuZnAl oxide catalysts Effect of substitution of zirconium and cerium on the catalytic performance. Topics in Catalysis, 2003, 22, 235. 

Ehitani, K., Konishi, J., Hattori, H. (1991). Skeletal isomerization of hydrocarbons over zirconium oxide promoted by platinum and sulfate ion. Journal of Catalysis, 130, 251. Ferreira, P., Rodriguez, I., Guerrero, A. (2002a). Pure hydrogen production from methylcyclohexane using a new high performance membrane reactor. Chemical Communications, 18, 2082-2083. 

A review gives an overview over the contribution of organometalllc catalysis to Industry, another In the series on transition metals In organic synthesis covers CO reactions, hydrogenations and oxidations. The role of zirconium catalysts In hydro- and carboalumination of alkenes and alkynes, cyclopropanatlons and diene oligomerisations has been dlscussed, and an account deals with the role of electrophilic metal carbenes In cyclopropanatlons and other synthetic applications. 

M. Ichikawa. Catalysis by supported metal crystallites from carbonyl clusters. II. Catalytic ethanol synthesis from carbon monoxide and hydrogen under atmospheric pressure over supported rhodium crystaUites prepared from Rh carbonyl clusters deposited on titanium dioxide, zirconium oxide, and lanthanum oxide. Bull. Chem. Soc. Jpn. 51, 1978, 2273-2277. 

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