Abstract
In the present work, nano-composite of CoFe2O4-MnO2 has been successfully synthesized by a simple wet chemical route in three steps. Samples were sintered at 800 °C for a period of 5 hrs to get the desired phases. X-ray diffraction studies have confirmed the existence of both CoFe2O4 and MnO2 phases. The average crystallite size was found to be 59.8 nm. Fourier Transform Infrared Spectroscopy analyses confirmed the occurrence of both phases by showing a characteristic band of ferrites at octahedral and tetrahedral sites as well as the vibrational mode of Mn-O. Scanning Electron Microscope analysis was carried out to study the morphology of the sample, which revealed the rod-like appearance of the composites in nano-scale. The thermal behaviour of CoFe2O4-MnO2 was investigated by using the combined Thermogravimetry-Differential Scanning Calorimetry technique, which revealed the endothermic behaviour of the composite. Characterization of magnetic properties was accomplished by vibrating the sample magnetometer. Saturation magnetization, coercivity, retentivity, and squareness were calculated from the hysteresis loop (M−H Curve) obtained from vibrating sample magnetometer.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
