Formation and Characterization of Cobalt Aluminate Nano-Particles

Various structural properties of cobalt aluminates such as crystallite size, lattice constant, unit cell volume, X-ray density, cation distribution of were determined by X-ray diffraction (XRD) and infrared (IR) techniques. Cobalt aluminates were prepared in this study by combustion route. The morphological properties of cobalt aluminates and the surface concentration of elements of these aluminates were studied by Scanning electron micrographs (SEM) and Energy dispersive X-ray (EDX) techniques. The results revealed that the method investigated led to formation of single phase of well crystalline cobalt aluminates (CoAl2O4) with spinel structure. The as synthesized powders were spongy and fragile. The change in amount of fuel used in the combustion method affects formation and crysatllinity of cobalt aluminates.