Study on preparation of nano-sized Mn-Zn ferrite by liquid phase circumfluence with activator

The preparation of nano-sized Mn-Zn ferrite powders by liquid phase circumfluence with the activator of Fe²⁺ at normal pressure was studied. Based on the liquid precursor of ZnSO₄·7H₂O, FeCl₃·6H₂O and MnSO₄, the powders were synthesized for about 6h. The effects of varying reaction factors such as pH, concentration and activator on component of the powders were also investigated and the conclusions were obtained. The techniques such as XRD, TEM and SEM were used to describe their crystal structure and morphology. The results show that their average diameter of the powders with spherical shape is 4.35 nm and Fe²⁺ has catalysis on the preparing reaction. A new method of preparing nano-sized Mn-Zn ferrite powders was established.