Synthesis and Characterization of Ferrihydrite Nanoparticles

Abstract

Undoped and nickel doped ferrihydrite nanoparticles are prepared by chemical routes. The samples are characterized by x-ray diffractometer, thermogravimetric analyzer and vibrating sample magnetometer. The average crystallite size is found to be about 2 nm. The prepared nanoparticles of undoped and nickel doped ferrihydrite are found to be antiferromagnetic at room temperature.