| dc.contributor.author |
Parida, K.M. |
|
| dc.contributor.author |
Rath, D. |
|
| dc.date.accessioned |
2018-10-01T12:22:29Z |
|
| dc.date.available |
2018-10-01T12:22:29Z |
|
| dc.date.issued |
2006 |
|
| dc.identifier.citation |
Journal Of Molecular Catalysis A-Chemical, 258(1-2), 2006: 381-387 |
|
| dc.identifier.issn |
1381-1169 |
|
| dc.identifier.uri |
http://ore.immt.res.in/handle/2018/1231 |
|
| dc.description.abstract |
The mesoporous molecular sieve MCM-41 was synthesized by sol-gel method using tetraethyl orthosilicate (TEOS), cetyl trimethyl ammonium bromide (CTAB), aqueous NH3 and water. A series of sulfate modified MCM-41 was prepared by incipient wetness impregnation method using H2SO4 as sulfatising agent. The samples were characterized by BET surface area, X-ray diffraction, FT-IR and TG-DTA. The catalytic activity of the samples was evaluated for nitration of phenol with nitric acid in dichloro ethane (DCE) medium, at room temperature. The effect of reaction parameters, i.e. time, concentration of nitric acid and phenol/nitric acid ratio were also investigated. Modification with sulfate opened new opportunities to generate active Bronsted and Lewis acid sites in the stabilized nanostructure MCM-41. Among the catalysts screened, 4 wt.% sulfated MCM-41 showed maximum activity (93%), with 90% selectivity towards ortho-nitrophenol. (c) 2006 Elsevier B.V. All rights reserved. |
|
| dc.language |
en |
|
| dc.publisher |
Elsevier |
|
| dc.relation.isreferencedby |
SCI |
|
| dc.rights |
Copyright [2006]. 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 MCM-41: Effect of sulfate on nitration of phenol |
|
| dc.type |
Journal Article |
|
| dc.affiliation.author |
CSIR-IMMT, Bhubaneswar 751013, Odisha, India |
|