Journal de la métallurgie des poudres et des mines

Abstrait

Comparative Morphological Studies on NiO, CoO and Fe₂O₃ Nanoparticles

Thirumamagal R , Irshad Ahamed S , Nivetha S, Saravanakkumar D, Ayeshamariam A*, Pandiarajan S and Jayachandran M

Stable oxides of Ni, Fe and Co nanoparticles are synthesized by chemical route using leaf extraction. Structural, biological morphological and magnetic properties were investigated. X ray pattern shows a polycrystalline structure of samples. Diffraction planes of (200), (122) and (200)-oriented crystal structures were revealed by X-ray pattern for NiO, Fe₂O₃ and CoO respectively. Hexagonal, orthorhombic and cubic crystal structures have been revealed respectively for NiO Fe₂O₃ and CoO nanoparticles. Microscopic structure has been detected by using of Scanning Electron Microscopy. Ni, Fe and Co is present at 71%, 78.8%, 79% as indicated by EDS analysis respectively. Mass magnetization values of 51, 61 and 54 emu/g are recorded for NiO, Fe₂O₃ and CoO nanoparticles.