Inverse Co-precipitation Synthesis of Copper Chromite Nanoparticles

In this study, copper chromite (CuCr۲O۴) nanoparticles was prepared by inverse co-precipitation method. In this method, cupric nitrate trihydrate, (Cu (NO۳)۲.۳H۲O) and chromium nitrate nonahydrate, (Cr (NO۳) ۳.۹H۲O) with a mole ratio of ۱:۲ were used. Characterization of CuCr۲O۴ nanoparticles was performed by Fourier Transform Infrared Spectroscopy (FT-IR), Raman Spectroscopy, X-ray Diffraction Spectroscopy (XRD), Thermo-Gravimetric/Differential Scanning Calorimetry (TG-DSC), and Field Emission Scanning Electron Microscopy (FE-SEM). The results show that CuCr۲O۴ crystal can be obtained at temperature ۵۲۰ °C. Also, phase structure of the CuCr۲O۴ depends on both Cu:Cr molar ratio and temperature in the starting reactants. Based on this method and under optimum conditions, the temperature for calcination (۵۲۰ oC), the crystallite size of nanoparticles (۱۸ nm), the spherical structure particles (۳۰ to ۷۰ nm) were obtained.

کلیدواژه ها:

Copper chromite ، Nano particle ، Inverse co-precipitation