Abstract
Cobalt ferrite (CoFe2O4) nanoparticles were synthesized by a facile novel co-precipitation method with citrate as chelating agent. The synthesized cobalt ferrite nanoparticles were calcinated at 400, 600 and 800 °C and characterized by using XRD and TGDTA. From XRD it confirms that CoFe2O4 nano particles belongs to spinel type lattice of space group Fd3m. The CoFe2O4 nano particles calcinated at 600 °C were further characterized by using FE-SEM with EDAX, FE-TEM with SAED pattern, DLS zeta potential and CV. The linear relationship between particle size and calcination temperatures of CoFe2O4 nanoparticles was noticed. The surface morphology of CoFe2O4 studied through FE-SEM and FE-TEM indicate that the particles are found crystalline and are in cubic shape. EDAX analysis revealed the presence of Co, Fe and O. Zeta potential exposes the good stability of the prepared CoFe2O4 nanoparticles. Capacitance value 609 F g−1 was observed for the scanning rate of 2 mV s−1 from the CV study and concluded it is suitable for super capacitor application.
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