CF3SO3H and CF3SO3H/CD3CN adducts in silicalite channels as model systems for H-ZSM-5 Bronsted acidity evaluation

Authors
Paze, C Palomino, GT Zecchina, A
Citation
C. Paze et al., CF3SO3H and CF3SO3H/CD3CN adducts in silicalite channels as model systems for H-ZSM-5 Bronsted acidity evaluation, CATAL LETT, 60(3), 1999, pp. 139-143
Citations number
22
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
60
Issue
3
Year of publication
1999
Pages
139 - 143
Database
ISI
SICI code
1011-372X(1999)60:3<139:CACAIS>2.0.ZU;2-B
Abstract
The vibrational properties of triflic acid and of triflic acid-acetonitrile adducts adsorbed in silicalite channels are described. The spectroscopic m odifications induced on triflic acid by the acid-base interaction are compa red with those of the HCl/acetonitrile adducts formed in situ in the silica lite channels, and with those of the H-ZSM-5/acetonitrile and of the H-Nafi on/acetonitrile systems. It is concluded that triflic acid in silicalite sh ows an acidity almost comparable to that of H-ZSM-5 and of H-Nafion.