Publikace detail

On the Effect of Cobalt Loading on Catalytic Activity of Co-BEA Zeolites in Ethane Oxidative Dehydrogenation and Ammoxidation

Autoři: Novoveská Kateřina | Bulánek Roman | Wichterlová Blanka

Rok: 2003

Druh publikace: článek v odborném periodiku

Název zdroje: Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology

Název nakladatele: Univerzita Pardubice

Místo vydání: Pardubice

Strana od-do: 111-129

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
cze			xxx
eng	On the Effect of Cobalt Loading on Catalytic Activity of Co-BEA Zeolites in Ethane Oxidative Dehydrogenation and Ammoxidation	Metal ion species introduced into zeolite seem to be attrective redox catalysts. There is a great effort to convert light paraffins into more valuable chemicals. Zeolite BEA modified by cobalt exhibited the highest activity and selectivity in ammoxidation and oxidative dehydrogenation of ethane in comparison with other high-silica zeolite matrices modified by cobalt. Beside bare cobalt ions and cobalt oxide clusters, the oxygen bridged cobalt dimers (so called ě-oxo species) are formed in the Co-BEA zeolites with cobalt loading close to theoretical exchange level. these complexes exhibit specific reactivity, which differs from both highly dispersed cobalt oxide and atomically dispersed Co2+ ions in the cationic site of BEA framework.	Co-BEA zeolites, ethane, dehydrogenation, ammoxidation

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