Metadata of CSIR Papers
View Archive Info| Field | Value | |
| Creator |
Jinka, KM
Bajaj, HC Jasra, RV Prasetyanto, EA Park, SE |
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| Subject |
Chemistry
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| Description |
Carbon templated mesoporous vanadium MFI catalysts with different Si/V ratios were successfully synthesized using microwave irradiation. X-ray diffraction studies revealed the formation of more crystalline MFI structures. SEM and TEM imaging also showed well ordered zeolite single crystals having mesoporosity. The N(2) sorption isotherm showed the formation of bimodal mesoporous zeolites. FT-IR studies showed absorbance around 970 cm(-1) corresponding to Si-O-V stretching vibration and the UV-Vis studies revealed strong peaks in the range of 230-340 nm which is related to the presence of tetrahedral V(5+) state. The catalytic activity of the microwave synthesized catalysts was evaluated for epoxidation of styrene using molecular oxygen. The catalysts exhibited 20-40% styrene conversion with 60-75% epoxide selectivity. With increasing Vanadium content, the conversion as well as the selectivity was observed to increase. The catalyst could be recycled for three cycles without a loss in activity.
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| Publisher |
SPRINGER/PLENUM PUBLISHERSNEW YORK233 SPRING ST, NEW YORK, NY 10013 USA
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| Date |
2011-09-20T12:03:21Z
2011-09-20T12:03:21Z 2010 |
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| Type |
Article
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| Identifier |
TOPICS IN CATALYSIS
1022-5528 http://hdl.handle.net/123456789/12287 |
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| Language |
English
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