title: Brønsted acid sites of zeolitic strength in amorphous silica-alumina.
abstract: The most acidic OH groups in silica-aluminas (zeolites, clays, amorphous silica-aluminas) can be made to react selectively with C(6)D(6) to give acidic OD groups; quantification by IR spectroscopy shows that differences in the overall Brønsted acidity of aluminosilicates are dominated by differences in the density of sites of similar acid strength.
authors.affiliation: Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
authors.forename: Dilip G
authors.initials: DG
authors.lastname: Poduval
authors.forename: J A Rob
authors.initials: JA
authors.lastname: van Veen
authors.forename: Marcello S
authors.initials: MS
authors.lastname: Rigutto
authors.forename: Emiel J M
authors.initials: EJ
authors.lastname: Hensen
mesh_terms: D000143:Acids / Q000737:chemistry*; D000538:Aluminum Silicates / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000143:Acids; D000538:Aluminum Silicates