Adsorption of Benzene on the Acid and Base Sites of KHß Zeolite by IR in Situ Spectroscopy
In situ IR studies of benzene adsorbed on several KH β zeolites, where the extent of potassium exchange, K/Al (%), varied from 0 to 88.32%, have been undertaken under different conditions. The bands of adsorbed benzene on KH β zeolites in the range 2050–1700 cm–1 were assigned. KH β zeolite exhibits basicity only when K/Al ⩽ 88.32%, where its basicity is stronger and its acidity weaker. The order of stability of the various adsorbed benzene species on the samples is as follows: O–(benzene) > H+(benzene) > K+(benzene) > benzene.
Shen, J-P., Ma, J., Sun, T., Jiang, D., & Min, E. (1994). Adsorption of Benzene on the Acid and Base Sites of KHß Zeolite by IR in Situ Spectroscopy. Journal of the Chemical Society, Faraday Transactions, 90(9), 1351-1354. https://doi.org/10.1039/FT9949001351