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A catalytic and characterization study of the surface acidity generated on the reduction of copper exchanged Y zeolites

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Abstract

Zeolite acidity, in the form of Bronsted acid sites generated on reducing a range of copper Y zeolites, was probed by infrared spectroscopy. The nature of the alkali metal co-cation (Li+, Na+, K+, Rb+ and Cs+) is shown to influence both the acid strength and location of the Bronsted sites. Acid strength decreases in the order CuLiY > CuNaY > CuKY > CuRbNaY > CuCsNaY. The specific effect of the alkali metal co-stations on the level of protonic activity in benzene ethylation and cumene cracking is discussed.

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Author notes

  1. Mark A. Keane

    Present address: Chemistry Department, The University, G12 8QQ, Glasgow, Scotland

Authors and Affiliations

  1. Physical Chemistry Laboratories, University College, Galway, Eire

    Brendan Coughlan & Mark A. Keane

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  1. Brendan Coughlan
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  2. Mark A. Keane
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Coughlan, B., Keane, M.A. A catalytic and characterization study of the surface acidity generated on the reduction of copper exchanged Y zeolites. Catal Lett 5, 113–125 (1990). https://doi.org/10.1007/BF00763944

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  • DOI: https://doi.org/10.1007/BF00763944

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