Preparation of Monodisperse Iron Nanoparticles at Low Temperature

Abstract

Monodisperse iron nanoparticles were prepared by thermal decomposition of iron carbonyl at low temperature of 160 oC - 180 oC in kerosene. The synthesized iron nanoparticles were spherical and their average size was decreased from 11.2nm to 8.6 nm as increasing the reaction temperature from 160 oC to 180 oC, respectively. The synthesized iron nanoparticles are amorphous, but the surface of the particles is easily oxidized and to be spinel structured iron oxide by HRTEM.