Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases p. 1893 - 1902 (1986)
Update date:2022-08-31
Topics:
Melchor, Antonio
Garbowski, Edouard
Mathieu, Michel-Vital
Primet, Michel
γ-Al2O3 has been chlorinated by CCl4 at 573 K in order to increase its acidity.Different physical methods, including infrared spectroscopy, thermogravimetry and thermodesorption of pyridine, have been used to calculate the actual number of acidic sites, according to their strength.Comparison with samples treated with HCl or AlCl3 leads to the conclusion that stronger Lewis sites are in the form of grafted AlCl3. n-Butane isomerization has been performed on such solids.Reaction occurs without the presence of metal and the higher the acidity the higher the activity and selectivity.
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