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Transition-metal (Ti,V,Cr,Mn,Fe,Co,Cu) containing ordered nanoporous materials: Novel heterogeneous catalysts for selective oxidation reactions

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Title Transition-metal (Ti,V,Cr,Mn,Fe,Co,Cu) containing ordered nanoporous materials: Novel heterogeneous catalysts for selective oxidation reactions
 
Creator SELVAM, P
PAULOSE, TAP
 
Subject silicate molecular-sieve
cyclohexane
titanium
cycloalkanes
efficient
mcm-41
air
mesoporous materials
mcm-41
timcm-41
selective oxidation
cycloalkane
cyclohexane
cyclooctane
cyclododecane
 
Description Transition-metal (Ti,V,Cr,Mn,Fe,Co,Cu) containing periodic nanoporous catalysts, were synthesized hydrothermally and characterized using various analytical and spectroscopic techniques. The catalytic performance of the different catalysts was systematically evaluated with a detailed study on TiMCM-41. All the catalysts showed promise for the selective oxidation of cycloalkanes, viz., cyclohexane, cyclooctane, and cycloclodecane, under mild reaction conditions. Furthermore, these mesoporous molecular sieves were also active for all the chosen reactions even after several recycling and/or washing treatments. Among the various materials under investigation, the catalysts TiMCM-41 and VMCM-41 showed much higher substrate conversion and excellent product selectivity in conjunction with a minimal leaching of the active species. More importantly, the influence of pore size on the catalytic activity of the bulkier substrates such as cyclooctane and cycloclodecane is demonstrated.
 
Publisher AMER SCIENTIFIC PUBLISHERS
 
Date 2011-07-17T04:11:02Z
2011-12-26T12:50:06Z
2011-12-27T05:36:05Z
2011-07-17T04:11:02Z
2011-12-26T12:50:06Z
2011-12-27T05:36:05Z
2006
 
Type Article
 
Identifier JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 6(6), 1758-1764
1533-4880
http://dx.doi.org/10.1166/jnn.2006.239
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4610
http://hdl.handle.net/10054/4610
 
Language en