@article { ISI:000275580600010, title = {Solvent-free selective oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide over U3O8-supported nano-gold catalysts}, journal = {Applied Catalysis A-General}, volume = {375}, number = {2}, year = {2010}, month = {MAR}, pages = {252-257}, publisher = {ELSEVIER SCIENCE BV}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, abstract = {

Liquid-phase oxidation of benzyl alcohol to benzaldehyde by tertiary butyl hydroperoxide over different uranium oxide supported nano-gold catalysts in the absence of a solvent has been thoroughly investigated. The influences of catalyst parameters [viz, method of gold deposition (impregnation, co-precipitation, deposition-precipitation and homogeneous deposition-precipitation), gold loading (08 wt\%) and catalyst calcination temperature (100-900 degrees C)] on the catalyst performance have been investigated. The influence of reaction conditions [viz, reaction time (0-2 h) and temperature (25-94 degrees C)] on the process performance has also been studied. The Au/U3O8 catalyst prepared by the homogeneous deposition-precipitation and calcined at 400 degrees C showed very high activity (100\% benzyl alcohol conversion with \>85\% selectivity for benzaldehyde) in the process for a short reaction period (0.5 h) at 94 degrees C. The catalyst also showed excellent reusability in the process. (C) 2010 Elsevier B.V. All rights reserved.

}, keywords = {Au/U3O8 catalyst, Benzaldehyde, Benzyl alcohol, Nano-gold, Partial oxidation, tert-Butyl hydroperoxide}, issn = {0926-860X}, doi = {10.1016/j.apcata.2010.01.007}, author = {Choudhary, Vasant R. and Dumbre, Deepa K.} }