Nanotechnological Applications of Chromium Oxide Nanoparticles and its correlation with Structural and Magnetic Properties

Abstract

“Chromium oxide nanoparticles (NPs) have been rapidly synthesized by precipitation method using ammonia as precipitating agent and are characterized by using X-ray Diffraction (XRD), Thermo Gravimetric Analysis (TGA), UV-Visible absorption (UV), Infrared Spectroscopy (IR), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). XRD studies show that chromium oxide NP is formed as Cr₂O₃ and it has hexagonal structure. The shape and particle size of the synthesized Cr₂O₃ NPs is determined by SEM and TEM. The images showed that the size of NPs of Cr₂O₃ varied from 20 nm to 70 nm with average crystalline size 45 nm. UV-Visible absorption and IR spectroscopy confirm the formation of nanosized Cr₂O₃. TGA verifies that the Cr₂O₃ NPs are thermally stable up to 1000 °C.”