Suppression of Radical-Cationic Benzene Oligomerization on Sulfated Zirconia
Reaction Kinetics and Catalysis Letters
, E-ISSN: 1588-2837
||Benzene, Biphenyl, Cation radicals, ESR, Oligomerization, Sulfated zirconia
Bedilo Alexander F.
Volodin Alexander M.
Boreskov Institute of Catalysis, Novosibirsk, Russia
Russian Foundation for Basic Research
The effect of catalyst activation conditions on transformations of benzene cation radicals on sulfated zirconia has been studied by in situ ESR spectroscopy. After the catalyst activation at 300°C there was no oligomerization of the cation radicals to biphenyl and heavier products, which is observed after catalyst calcination at 500°C. It has been suggested that the oligomerization is suppressed by the presence of strong Brönsted sites on the surface.