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Hydroxylation of phenol over molybdovanadophosphoric acid modified zirconia

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dc.contributor.author Parida, K.M.
dc.contributor.author Mallick, S.
dc.date.accessioned 2018-10-01T12:22:52Z
dc.date.available 2018-10-01T12:22:52Z
dc.date.issued 2008
dc.identifier.citation Journal Of Molecular Catalysis A-Chemical, 279(1), 2008: 104-111
dc.identifier.issn 1381-1169
dc.identifier.uri http://ore.immt.res.in/handle/2018/1351
dc.description.abstract Molybdovanadophosphoric acid (MVPA) supported zirconia was synthesized by an incipient wetness impregnation method taking zirconium hydroxide and MVPA as the precursors. The neat and supported catalysts were calcined at 500 degrees C and characterized by nitrogen adsorption-desorption, X-ray powder diffraction, FTIR, UV-vis DRS, temperature programmed reduction (TPR) and Raman spectroscopy techniques. The 15 wt.% MVPA stabilizes the tetragonal phase of zirconia, which leads to an increase in surface area. The Keggin structure of MVPA remains unaltered up to 500 degrees C. The catalytic activities were evaluated for hydroxylation of phenol using H2O2 as the oxidant. Among all the promoted catalysts, 15 wt.% molybdovanadophosphoric acid supported zirconia exhibits highest catalytic activity in phenol hydroxylation, giving 49% conversion having 61% para selectivity. (c) 2007 Elsevier B.V. All rights reserved.
dc.language en
dc.publisher Elsevier
dc.relation.isreferencedby SCI
dc.rights Copyright [2008]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject Chemical Sciences
dc.title Hydroxylation of phenol over molybdovanadophosphoric acid modified zirconia
dc.type Journal Article
dc.affiliation.author CSIR-IMMT, Bhubaneswar 751013, Odisha, India


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