Abstrato

Synthesis, charactrization, catalytic properties and effect of sintering temperature on spinel ferrite synthesized by co-precipitationmethod

S.D.Jadhav, P.D.Kamble, N.M.Patil, V.T.Vader, P.P.Hankare

The various compositions ofMgNi ferrite systemwere synthesized by coprecipitation technique. The resulting powder of composition Mg0.5Ni0.5 Fe2O4was further heated at different temperatures from600oC-1000oC for four hours to get good surface area. The formation of compound was then investigated by thermal analysis (TGA/DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The formation of spinel structure was confirmed by X-ray diffraction. The (311) peak was found to be most intense. SEM microphotographs exhibited increase in grain size with increase in sintering temperature. Unlike single oxides or their mixtures, the single phase spinel-type binary and ternary oxides show extra structural stability and exhibit interesting catalytic properties. Hence the decomposition of H2O2 is carried out and to calculated activation energy.