| dc.contributor.author |
Mallik, S. |
|
| dc.contributor.author |
Parida, K.M. |
|
| dc.contributor.author |
Dash, S.S. |
|
| dc.date.accessioned |
2018-10-01T12:22:39Z |
|
| dc.date.available |
2018-10-01T12:22:39Z |
|
| dc.date.issued |
2007 |
|
| dc.identifier.citation |
Journal Of Molecular Catalysis A-Chemical, 261(2), 2007: 172-179 |
|
| dc.identifier.issn |
1381-1169 |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/1286 |
|
| dc.description.abstract |
A series of ecofriendly solid acid catalyst were synthesized by supporting phosphotungstic acid onto hydrous zirconia by an incipient wetness impregnation method in order to contribute towards clean technology. The support and resulting catalysts were characterized by various spectral and physicochemical techniques. Their catalytic activities were evaluated for oxybromination reaction of phenol by varying different reaction parameters. The electrophilic substitution of bromine generated in situ from KBr as a bromine source and hydrogen peroxide as an oxidant. The 15 wt.% of phosphotungstic acid supported on hydrous zirconia shows highest surface area, acid sites and gives about 93% conversion with 81% para-selectivity. (c) 2006 Elsevier B.V. All rights reserved. |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [2007]. 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 |
Studies on heteropoly acid supported zirconia III: Oxidative bromination of phenol using phosphotungstic acid supported on zirconia |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
CSIR-IMMT, Bhubaneswar 751013, Odisha, India |
|