Journal
JOURNAL OF POROUS MATERIALS
Volume 19, Issue 3, Pages 283-288Publisher
SPRINGER
DOI: 10.1007/s10934-011-9472-y
Keywords
Manganese; TUD-1; Mesoporous; Cyclohexane; Oxidation; TBHP
Funding
- DST SERC Fast Track Schemes [CS-41, CS-44]
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Manganese containing three dimensional sponge-like amorphous mesoporous silicate MnTUD-1 with Si/Mn ratio of 115, 44 and 25 was prepared by hydrothermal method using tetraethylene glycol as the template. Nitrogen physisorption indicates that MnTUD-1 is a mesoporous material possessing surface area of 430-490 m(2)/g with mesopore volume of 0.61-0.71 cm(3)/g and an average adsorption pore diameter of 4.1-4.7 nm. The framework incorporation of manganese was confirmed by FT-IR, EPR and DRS UV-Vis studies. Manganese exists in bivalent and trivalent states in all the materials. MnTUD-1 showed good catalytic activity (13.5% cyclohexane conversion) and high selectivity (84.5%) in the liquid phase oxidation of cyclohexane with -butyl hydroperoxide as the oxidant under mild solvent-less reaction conditions.
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