CuMn2O4 nanostructures: Facial synthesis, structural,magnetical, electrical characterization and activation energy calculation
Subject Areas : International Journal of Bio-Inorganic Hybrid Nanomaterials
Keywords: Electrical properties, activation energy, Ferromagnetism, CuMn2O4 Nanostructures, Kissinger Equation,
Abstract :
The work is the report about stearic acid sol-gel synthesis method, magnetically, electricalcharacterization and activation energy of copper manganese oxide nanostructures. The CuMn2O4nanostructures are synthesized at a temperature of 600°C using the sol-gel method. The structuralanalysis using X-ray diffraction (XRD) and Scherrer equation show that the crystallite size of CuMn2O4is about 23.0 nm. The activation energy value is measured by temperature-programmed reduction(TPR) analysis at three heating rates of 10, 15 and 20 °C/min and Kissinger equation .The Ea value is28.1 kJ/mol. Vibrating sample magnetometer (VSM) analysis of the nanostructures indicates moderateferromagnetic properties. Examination of the dielectric properties by the LCR meter indicates thesemiconducting property of the nanostructure. The highest conductivity increase was in the frequencyof 308 MHz equal to 70.7 μS. Therefore, the CuMn2O4 nanostructures are potential candidates in fuelcells, telephones, loudspeakers and transformers due to their properties and convenience, non-toxicand environmentally friendly production methods.