Synthesis and Characterization of CoFe_2O_4 Nanoparticles by Glycothermal Process

摘要

Abstract. CoFe_2O_4 nanoparticles were prepared in ethylene glycol solution under mild temperature and pressure conditions by precipitation from metal nitrates. The average size of the synthesized CoFe_2O_4 nanoparticles was in the range of 5 to 10nm, and they were narrowly distributed in the crystalline phase. Their magnetic property was of superparamagnetic character at room temperature. The effect of synthesis parameters is discussed such as the pH of starting solutions and reaction temperature.