Catalytic oxidation of toluene with molecular oxygen over Cr-substituted mesoporous materials

Syntheses of thermally stable chromium-incorporating hexagonal mesoporous aluminophosphate and cubic Cr-MCM-48 were reported. Characterization of the catalysts was made using low angle XRD, N2 adsorption, UV-VISDRS, thermal anal., ICP-AES and ESR. Mesoporous Cr-AlPO4 and Cr-MCM-48 catalysts have been found to be active for the vapor phase oxidn. of toluene with mol. oxygen. Mesoporous Cr-AlPO4 is found to exhibit both acidic and redox properties and hence oxidn. as well as dealkylation reactions are taking place in a concerted manner, whereas, the cubic silicate analog acts as a pure redox catalyst. [on SciFinder (R)]


Published in:
Applied Catalysis A: General, 241, 1-2, 205-215
Year:
2003
Keywords:
Note:
CAN 140:28727
45-4
Industrial Organic Chemicals, Leather, Fats, and Waxes
Department of Chemistry,Indian Institute of Technology Madras,Chennai,India.
Journal
0926-860X
written in English.
78-10-4; 7784-30-7D (Aluminum phosphate) Role: CAT (Catalyst use), USES (Uses) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 75-59-2 (Tetramethylammonium hydroxide); 1308-38-9 (Chromium oxide); 1314-56-3 (Phosphorus oxide); 1344-28-1 (Alumina) Role: CAT (Catalyst use), RCT (Reactant), USES (Uses), RACT (Reactant or reagent) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 71-43-2 (Benzene) Role: FMU (Formation, unclassified), FORM (Formation, nonpreparative) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 100-52-7P (Benzaldehyde) Role: IMF (Industrial manufacture), PREP (Preparation) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 57-09-0 (Cetyltrimethylammonium bromide) Role: MOA (Modifier or additive use), USES (Uses) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 7727-37-9 (Nitrogen) Role: PEP (Physical, engineering or chemical process), PYP (Physical process), PROC (Process) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials); 108-88-3 (Toluene) Role: RCT (Reactant), RACT (Reactant or reagent) (catalytic oxidn. of toluene with mol. oxygen over Cr-substituted mesoporous materials)
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 Record created 2006-04-18, last modified 2018-12-03

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