Transient kinetics of toluene partial oxidation over V/Ti oxide catalysts
Transient kinetics in the toluene oxidn. over V/Ti oxide catalysts prepd. by grafting and impregnation have been compared. V4+ cations are supposed to be the sites for the formation of electrophilic oxygen species participating in deep oxidn. Another oxygen species (probably nucleophilic) present on the oxidized catalyst surface are responsible for benzaldehyde formation. Selectivity of 80-100% can be obtained during the initial period of the reaction on the grafted catalysts in the presence of gaseous oxygen and during the interaction of toluene (without O2 in the mixt.) with partially reduced catalysts. [on SciFinder (R)]
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