Synthesis and Characterization of Ni 0.7 Zn 0.3 Fe 2 O 4 and Mn 0.7 Zn 0.3 Fe 2 O 4 Nanoparticles by Water-in-oil Microemulsion.

Ferrite is an important ceramic material with magnetic properties that are useful in many types of electronic devices. In this paper we synthesized nanostructured Ni0.7Zn0.3Fe2O4and Mn0.7Zn0.3Fe2O4with spinel structure in the system of water-in-oil microemulsion of water/Triton X–100/n-hexanol/cyclohexane. The result showed that nanoparticles with size in the range of 50–80 nm could be obtained by microemulsion method. FT-IR spectrum, XRD patterns and DTA curves revealed that the nanoparticles could be obtained via calcining its precursor at 500°C. The VSM plots showed that the ferrimagnetic behavior was expected for this type of magnetic material. [ABSTRACT FROM AUTHOR]