Facile Synthesis of Nanocrystalline CuFe_2O_4 Materials by Molten Salt Flux Method

摘要

The facile synthesis of nanocrystalline CuFe_2O_4 materials were obtained by solid state salt flux technique using the reaction mixture with different ratio (1:1, 1:2, 1:3, 0:4 and 4:0) of NaCl:KCl flux at 950-1000°C. Though all the flux synthesized materials show good quality tetragonal phase CuFe_2O_4 materials, no significant variation in lattice parameters are seen due to variation in flux concentration. The extracted average crystalline sizes are in the range of 25.5 - 30.61 nm for different nanocrystalline CuFe_2O_4 materials. The HRSEM micro-images of flux synthesized nanocrystalline CuFe_2O_4 materials indicate that the grains have different shapes in the range of ～374 nm to ～782 nm due to polycrystalline nature.