FT-IR SPECTROSCOPY STUDY OF ISOPROPANOL REACTIVITY ON SILICA-SUPPORTED HETEROPOLYANIONS

Authors
ARANZABE A ROMAN P AGUAYO AT MARTIN C RIVES V
Citation
A. Aranzabe et al., FT-IR SPECTROSCOPY STUDY OF ISOPROPANOL REACTIVITY ON SILICA-SUPPORTED HETEROPOLYANIONS, Spectroscopy letters, 30(6), 1997, pp. 963-974
Citations number
12
Categorie Soggetti
Spectroscopy
Journal title
Spectroscopy letters → ACNP
ISSN journal
00387010
Volume
30
Issue
6
Year of publication
1997
Pages
963 - 974
Database
ISI
SICI code
0038-7010(1997)30:6<963:FSSOIR>2.0.ZU;2-K
Abstract
FT-IR spectroscopy studies on the adsorption of pyridine on silica-sup ported heteropolyanions have shown the presence of surface acid sites, both Lewis and Bronsted ones, when starting from commercial phosphomo lybdic acid, but only Lewis acid sites when starting from n-hexylammon ium phosphododecamolybdate. A preferential formation of propene instea d of acetone (i.e., a larger selectivity towards dehydration) has been observed during isopropanol decomposition, due to the strong surface acidity of the samples.