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1. Infrared in situ characterization of HY zeolite acid sites during cyclohexene transformation

Author

F. Raatz, S. Colin, Jean-Claude Lavalley, J. Saussey, Jean-Francois Joly, and N. Zanier-Szydlowski

Subjects
In situ, chemistry.chemical_compound, Adsorption, Hydride, Chemistry, Cyclohexene, General Chemistry, Coke, Carbocation, Photochemistry, Zeolite, Catalysis
Abstract

The construction of cell suitable for in situ monitoring of catalysts is described. The apparatus has been used to elucidate the nature of the acid sites responsible for coke formation during cyclohexene conversion on dealuminated HY zeolites. It is suggested that the most acidic Bronsted sites are primarily responsible for coke formation. Activation of cyclohexene probably occurs through hydride transfer between adsorbed unsaturated carbocations and gas phase cyclohexene.

Published
1991

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