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Acidity Effect on the Catalytic Properties for Phenol Isopropylation
유정환,이철위,왕보,박상온,Yu, Jeong Hwan,Lee, Cheol Wi,Wang, Bo,Park, Sang On Korean Chemical Society 2001 Bulletin of the Korean Chemical Society Vol.22 No.3
Isopropylation of phenol with 2-propanol has been carried out over Na-exchanged ZSM-5 zeolites to determine the effect of catalyst acidity on phenol conversion and product selectivity. The acid type and strength of the catalyst such as Lewis, weak and strong Bronsted acid sites are measured by pyridine adsorbed XPS and the catalytic properties are interpreted in terms of the acid properties. The active site and mechanism for the reaction are suggested based on evidence of study from the reactant adsorbed FT-IR.