Chemical and Biomolecular Engineering Faculty Research

Title

Magnetic Properties Improvement in Fe(3)O(4) Nanoparticles Grown under Magnetic Fields

Document Type

Article

Publication Date

Summer 2004

Abstract

Magnetite nanoparticles have been synthesized under magnetic fields by the method of co-precipitation. The as-prepared samples were characterized by X-ray diffraction and transmission electron microscopy, and their magnetic properties were evaluated on a vibrating sample magnetometer. It is shown that the Fe3O4 samples produced by co-precipitation method under a magnetic field of 1 T have much higher saturation magnetization (15.3 emu/g) than that without magnetic field (6.59 emu/g). It is suggested that the well-crystallized Fe3O4 grains formed under magnetic fields should be responsible for the improved magnetic properties of nanosized Fe3O4 powders.

Volume

266

Issue

4

First Page

500

Last Page

504