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Acidic and cesium salts of polyoxometalates with and without vanadium supported on MCM-41 as catalysts for oxidation of cyclohexane with H2O2

DOI: 10.1007/s13203-012-0023-5

Keywords: Polyoxometalate,Oxidation,Cyclohexane,Hydrogen peroxide

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Abstract:

Acidic and cesium salts of polyoxometalate (POM) with and without vanadium supported on MCM-41 were synthesized and their catalytic activities were investigated in the oxidation of cyclohexane with H2O2 under solvent-free condition. The products are cyclohexanol and cyclohexanone. The catalytic activity order is: CsVPOM/MCM > HVPOM/MCM > CsPOM/MCM ~ HPOM/MCM > CsVPOM > CsPOM catalysts. High conversion and selectivity to cyclohexanone over the supported catalysts are due to redox property and high surface area. These heterogeneous catalysts can be reused.

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