Catalytic oxidation of cyclohexane to cyclohexanone and cyclohexanol by tert-butyl hydroperoxide over Pt/oxide catalysts

摘要

Heterogeneous oxidation of cyclohexane with tertiobutyl hydroperoxide was carried out on Pt/oxide (Al_2O_3, TiO_2 and ZrO_2) catalysts in the presence of different solvents (acetic acid and acetonitrile). The catalysts were prepared using Pt(NH_3)_2(NO_2)_2 as a precursor and characterized by chemical analysis using the ICP-AES method, XRD, TEM, FTIR and BET surface area determination. The oxidation reaction was carried out at 70° C under atmospheric pressure. The results showed the catalytic performance of Pt/Al_2O_3 as being very high in terms of turnover frequency.