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2 Polish Journal of Chemistry

2 2008

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Vanadium-containing Mesoporous Molecular Sieves: Synthesis, Properties and Catalytic Performance in Oxidative Activation of Light Alkanes

Cortés Corberán V., Sulikowski B.

Polish Journal of Chemistry

2008

Vol. 82, nr 9

1823-1837

Vanadium-containing mesoporous molecular sieves (MMS) are quasi-crystalline solids with interesting catalytic properties in the oxidative activation of light alkanes. In the present work, the methods of their synthesis, physico-chemical properties and catalytic behaviour in the oxidative dehydrogenation and selective oxidation of C2-C4 alkanes are reviewed. It is concluded that, as with conventional supported vanadium contacts, the catalytic performance in these reactions is related to the number and environment of vanadium centres, and the best selectivity and yield are obtained over isolated vanadium sites exhibiting tetrahedral coordination.

Mechanism of Hydrogen Abstraction by O- Species in Oxidative Dehydrogenation of Early Al kanes: Propane, Ethane and Methane. Model Theoretical DFT Study

Góra A., Broclawik E.

Polish Journal of Chemistry

2008

Vol. 82, nr 9

1793-1799

Decomposition of methanol was adopted as a simple test for standardizing of activity of ZnO containing superbasic catalysts with respect to their applicability in CH3OH synthesis. The values of the rate constants and activation energies were evaluated considering the reaction mechanism. Obtained data were compared with those obtained for Pd/SiO2 and Pt/SiO2 catalysts.