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Synthesis, characterization and catalytic properties of mesoporous cobalt aluminophosphate molecular sieves

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Title Synthesis, characterization and catalytic properties of mesoporous cobalt aluminophosphate molecular sieves
 
Creator MOHAPATRA, SK
SELVAM, P
 
Subject electron-spin-resonance
liquid-phase oxidation
cyclohexane
coapo-5
substitution
autoxidation
mcm-41
mesoporous
aluminophosphates
hma
cobalt
cyclohexane
cyclohexanol
 
Description Isomorphously substituted cobalt(II) hexagonal mesoporous aluminophosphate (CoHMA) molecular sieves were synthesized hydrothermally and characterized by various analytical and spectroscopic techniques. It was deduced that cobalt ions exhibit a divalent oxidation state in tetrahedral coordination in mesoporous aluminophosphates. Further, unlike cobalt-containing microporous aluminophosphate molecular sieves, Co(II) ions remain in a tetrahedral geometry even after calcination. The catalytic activity of CoHMA was tested for the cyclohexane oxidation reaction under mild conditions. Remarkable substrate conversion and product (cyclohexanol) selectivity were obtained compared to several previously reported heterogeneous catalysts.
 
Publisher KLUWER ACADEMIC/PLENUM PUBL
 
Date 2011-10-22T02:51:10Z
2011-12-15T09:10:41Z
2011-10-22T02:51:10Z
2011-12-15T09:10:41Z
2003
 
Type Article; Proceedings Paper
 
Identifier TOPICS IN CATALYSIS,22,17-22
1022-5528
http://dx.doi.org/10.1023/A:1021403426304
http://dspace.library.iitb.ac.in/xmlui/handle/10054/14801
http://hdl.handle.net/100/1591
 
Source 16th Meeting of the North-American-Catalysis-Society,BOSTON, MASSACHUSETTS,MAY 30-JUN 04, 1999
 
Language English