Synthesis and electrochemical study of manganese ferrite (MnFe2O4) Nanoparticles

Manganese ferrite (MnFe2O4) nanoparticles, were synthesized by Sol-Gel technique, to investigate its applicability as electrode material for supercapacitor. The cubic spinal structure of MnFe2O4 was confirmed from X-ray diffraction (XRD) pattern and an average particle size calculated from Scherer equation was 15 nm. The scanning electron microscope (SEM) photograph reveals agglomerated nanosized grains of the product. Electrochemical properties were investigated via cyclic voltammetry and galvanostatic charge/discharge in 1M KCL electrolyte. The MnFe2O4 electrode exhibits maximum specific capacitance of 197Fg-1 at the scan rate of 1mVs-1.An electrochemical Impedance study of the product was also carried out to investigate its electrochemical characteristics. The MnFe2O4 nanoparticles seem to be promising material for supercapacitor.