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Room Temperature Selective Oxidation of Toluene Over Vanadium Substituted Polyoxometalate Catalysts by K.T. Venkateswara Rao; P.S.N. Rao; P. Nagaraju; P.S. Sai Prasad; N. Lingaiah is a Chemistry article available to read on EtoBox.

What is Room Temperature Selective Oxidation of Toluene Over Vanadium Substituted Polyoxometalate Catalysts about?

Selective oxidation of toluene at room temperature was carried on vanadium containing molybdophosphoric acid supported on niobia catalysts using t-butyl hydrogen peroxide (TBHP) as oxidant. The catalysts were characterized by FT-IR, X-ray diffraction (XRD), 31 P MAS NMR, Laser Raman spectroscopy and N 2 adsorption. The characterization data reveals the incorporation of vanadium and retention of intact Keggin ion on the support. The catalyst activity is related to the presence of vanadium in Keggin ion. The effect of TBHP-toluene concentration on the conversion and selectivity during toluene oxidation was also studied. A plausible reaction mechanism for the selective formation of benzaldehyde was proposed. The present catalyst is highly active, selective towards benzaldehyde and reusable with out any appreciable loss in activity and selectivity.

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Author

K.T. Venkateswara Rao; P.S.N. Rao; P. Nagaraju; P.S. Sai Prasad; N. Lingaiah

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1381-1169)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)