Oxidative dehydrogenation of ethylbenzene over La and Dy supported vanadia

A series of supported vanadia systems have been prepared by excess solvent technique using La203 and DY203 as supports. Physical characterization has been carried out using XRD, FTIR, TG studies, BET surface area measurement, pore volume analysis etc. Cyclohexanol decomposition has been used as a test reaction for evaluating the acid base properties of the supported system. The oxidative dehydrogenation of ethylbenzene has been employed as a chemical probe reaction to examine the catalytic activity. The active species correspond to amorphous and crystalline tetrahedral vanadyl units in the supported system.

Cochin University of Science and Technology