Brønsted acid sites of zeolitic strength in amorphous silica-alumina.
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.
Poduval
Dilip G
DG
Schuit Institute of Catalysis, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
van Veen
J A Rob
JA
Rigutto
Marcello S
MS
Hensen
Emiel J M
EJ
D000143:Acids / Q000737:chemistry*; D000538:Aluminum Silicates / Q000737:chemistry*; D013499:Surface Properties
D000143:Acids; D000538:Aluminum Silicates