Journal of Nanoparticle Research

, Volume 9, Issue 3, pp 419–426

Microwave-assisted synthesis and magnetic property of magnetite and hematite nanoparticles

Article

DOI: 10.1007/s11051-005-9051-8

Cite this article as:
Wang, WW., Zhu, YJ. & Ruan, ML. J Nanopart Res (2007) 9: 419. doi:10.1007/s11051-005-9051-8

Abstract

Nanoparticles of magnetite (Fe3O4) and hematite (α-Fe2O3) have been prepared by a simple microwave heating method using FeCl3, polyethylene glycol and N2H4·H2O. The amount of N2H4·H2O has an effect on the final phase of Fe3O4. The morphology of α-Fe2O3 was affected by the heating method. Crystalline α-Fe2O3 agglomerates were formed immediately at room temperature and most of these nanoparticles within agglomerates show the same orientation along [110] direction. After microwave heating, ellipsoidal α-Fe2O3 nanoparticles were formed following an oriented attachment mechanism. Both Fe3O4 and α-Fe2O3 nanoparticles exhibit a small hysteresis loop at room temperature.

Keywords

magnetite (Fe3O4hematite (α-Fe2O3nanoparticles microwave heating synthesis agglomeration 

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  1. 1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiP.R. China
  2. 2.Analysis & Testing Center for Inorganic Materials, Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiP.R. China
  3. 3.Graduate School of Chinese Academy of SciencesBeijingP.R. China

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