Sonochemical synthesis and characterization of pure nanometer-sized Fe3O4 particles

R. Vijayakumar, Yu Koltypin, I. Felner, A. Gedanken

Research output: Contribution to journalArticlepeer-review

292 Scopus citations

Abstract

Sonochemical synthesis of pure nanometer-size Fe3O4 powder with particle size of ca 10 nm is reported in this article. Fe3O4 can be simply synthesized by sonication of iron(II)acetate in water under an argon atmosphere. The properties of pure nanometer-size Fe3O4 particles were characterized by X-ray diffraction, Mössbauer spectroscopy, transmission electron microscopy (TEM), thermogravimetric analysis (TGA) with an external magnetic field, and quantum design SQUID magnetization measurements. The prepared Fe3O4 nanoparticles are superparamagnetic and its magnetization at room temperature is very low (<1.25 emu g-1).

Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalMaterials Science and Engineering: A
Volume286
Issue number1
DOIs
StatePublished - 30 Jun 2000

Bibliographical note

Funding Information:
Dr R.V.K thanks the Bar-Ilan Research Authority for his postdoctoral fellowship and Dr P. Jeevanandam for his helpful discussions. We thank Professor Y. Yeshurun for making available, for this study, the facilities of the National Centre for Magnetic Measurements at the Department of Physics, Bar-Ilan University. The study of the magnetic properties is supported by the Israel science foundation administrated by the Israeli Academy of Science and Humanities.

Keywords

  • Iron oxide
  • Iron(II)acetate
  • Nanometer-size
  • Sonochemical synthesis

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