Please use this identifier to cite or link to this item:
|Title:||Catalytic oxidative transformation of benzyl alcohol and cyclohexanol over mesoporous Mn-MCM-41, and Mo-MCM-41 and Mo(Im), Mn-MCM-41 molecular sieves|
|Keywords:||Molecular sieves;Hydrothermal method;Wet chemical method;XRD;TGA;FT-IR;ESR|
|IPC Code:||B01J29/035, C07B31/00|
|Abstract:||Mesoporous Mn-MCM-41 and Mo-MCM-41 molecular sieves were synthesized by hydrothermal method using manganese chloride, ammonium molybdate and sodium metasilicate as the source for Mn, Mo and Si. Mo(lm), Mn-MCM-41 was synthesized by impregnating Mn-MCM-41 with ammonium molybdate by wet chemical method. These materials were characterized by XRD, TGA, FT-IR and ESR techniques. The vapour phase oxidation of benzyl alcohol and cyclohexanol was attempted over these molecular sieves as a probe reaction. The principal products were benzaldehyde and cyclohexanone. The activity of Mn-MCM-41 was found to be better than the other two catalysts. The influence of time on stream was studied at 300°C for both the reactions over Mn-MCM-41 and Mo-MCM-41 molecular sieves. The conversion decreased very slightly with increase in time on stream.|
|ISSN:||0975-0991 (Online); 0971-457X (Print)|
|Appears in Collections:||IJCT Vol.11(2) [March 2004]|
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.