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Synthesis, characterization, and catalytic properties of chromium-containing hexagonal mesoporous aluminophosphate molecular sieves

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Title Synthesis, characterization, and catalytic properties of chromium-containing hexagonal mesoporous aluminophosphate molecular sieves
 
Creator MOHAPATRA, SK
HUSSAIN, F
SELVAM, P
 
Subject cyclohexane oxidation
silicate
mcm-41
(cr)hma
mesoporous
aluminophosphates
cyclohexane oxidation
cyclohexanol
cyclohexanone
 
Description Chromium-containing hexagonal mesoporous aluminophosphate molecular sieve materials were synthesized, characterized and evaluated for the oxidation of cyclohexane under mild conditions. The catalysts showed remarkable activity for the chosen reaction with very high substrate conversion and excellent product selectivity. In addition, recycling studies over the spent catalysts as well as studies on quenched solutions under the reaction conditions indicated no or very meager loss in activity; thus, the materials behaved truly as heterogeneous catalysts. This observation was well supported by ICP-AES analysis of the filtrates obtained from the washed catalysts where no leaching of active chromium species was detected. Furthermore, the reaction carried out using these filtrates confirmed the absence of active metal ions as it exhibited only a marginal activity.
 
Publisher KLUWER ACADEMIC/PLENUM PUBL
 
Date 2011-08-17T10:38:02Z
2011-12-26T12:55:29Z
2011-12-27T05:40:47Z
2011-08-17T10:38:02Z
2011-12-26T12:55:29Z
2011-12-27T05:40:47Z
2003
 
Type Article
 
Identifier CATALYSIS LETTERS, 85(3-4), 217-222
1011-372X
http://dx.doi.org/10.1023/A:1022102031892
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9838
http://hdl.handle.net/10054/9838
 
Language en