Suppression of radical-cationic benzene oligomerization on sulfated zirconia

Authors
Bedilo, AF Volodin, AM
Citation
Af. Bedilo et Am. Volodin, Suppression of radical-cationic benzene oligomerization on sulfated zirconia, REACT KIN C, 67(1), 1999, pp. 197-203
Citations number
14
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
REACTION KINETICS AND CATALYSIS LETTERS
ISSN journal
01331736 → ACNP
Volume
67
Issue
1
Year of publication
1999
Pages
197 - 203
Database
ISI
SICI code
0133-1736(199905)67:1<197:SORBOO>2.0.ZU;2-#
Abstract
The effect of catalyst activation conditions on transformations of benzene cation radicals on sulfated zirconia has been studied by in situ ESR spectr oscopy. After the catalyst activation at 300 degrees C there was no oligome rization of the cation radicals to biphenyl and heavier products, which is observed after catalyst calcination at 500 degrees C. It has been suggested that the oligomerization is suppressed by the presence of strong Bronsted sites on the surface.