Role of fuels on intrinsic and extrinsic properties of CoFe_2O_4 synthesized by combustion method

摘要

We have investigated the role of two different fuels viz. glycine and hexamethylenetetramine (HMT) on the electric and magnetic properties of cobalt ferrite synthesized by combustion method. X-ray diffraction study confirms the proper phase formation and spinel structure. Scanning electron microscope study of S, (sample prepared by HMT) shows the porous microstructure while that of S_2 (sample prepared by glycine) shows the dense microstructure. The DC resistivity of S_1 is found to be larger than S_2. The dielectric properties of S, and S_2 reveal the usual dielectric dispersion nature. The static contact angle measurement reveals the superhydrophobic and hydrophobic nature for S_1 and S_2 respectively.