Investigation of the different states of gallium in crystalline gallosilicates with pentasil structure and their role in propane aromatization

Investigation of the different states of gallium in crystalline gallosilicates with pentasil structure and their role in propane aromatization Full article

Journal

Zeolites
ISSN: 0144-2449 , E-ISSN: 1873-3115

Output data

Year: 1990, Volume: 10, Number: 6, Pages: 603-607 Pages count : 5 DOI: 10.1016/s0144-2449(05)80320-3

Authors

Khodakov A.Yu. ¹ , Kustov L.M. ¹ , Bondarenko T.N. ¹ , Dergachev A.A. ¹ , Kazansky V.B. ¹ , Minachev Kh.M. ¹ , Borbély G. ² , Beyer H.K. ²

Affiliations

1	N. D. Zelinsky Institute of Organic Chemistry Academy of Sciences of the USSR Moscow, USSR
2	Central Research Institute for Chemistry, Hungarian Academy of Sciences Budapest, Hungary

Results obtained by i.r. and e.p.r. spectroscopy show that at least two gallium-containing extraframework species differing in location, chemical nature, and acidic behavior are present in gallosilicate isostructural with ZSM-5 zeolite. Both species are formed in larger amounts by gallium release from the framework during catalyst regeneration processes. One of them, partly located on the outer crystallite surface, is found to be involved as a catalytically active site in propane aromatization. The catalytic activity is attributed to Lewis acidity.

Khodakov A.Y. , Kustov L.M. , Bondarenko T.N. , Dergachev A.A. , Kazansky V.B. , Minachev K.M. , Borbély G. , Beyer H.K.
Investigation of the different states of gallium in crystalline gallosilicates with pentasil structure and their role in propane aromatization
Zeolites. 1990. V.10. N6. P.603-607. DOI: 10.1016/s0144-2449(05)80320-3 OpenAlex

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