Issue 4, 2004
From the journal:

Journal of Materials Chemistry

Sonochemical synthesis of nanocrystalline LaFeO3

M. Sivakumar,a   A. Gedanken,*a   W. Zhong,b   Y. H. Jiang,b   Y. W. Du,b   I. Brukental,c   D. Bhattacharya,c   Y. Yeshurunc  and  I. Nowikd  

* Corresponding authors

a Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
E-mail: gedanken@mail.biu.ac.il
Fax: 972-3-5351250
Tel: 972-3-5317769

b National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, P. R. China

c Institute of Superconductivity, Department of Physics, Bar-Ilan University, Ramat-Gan, Israel

d The Racah Institute of Physics, The Hebrew University, Jerusalem, Israel

Abstract

Nanocrystalline perovskite-type LaFeO3 with particle size of about 30 nm was prepared by a sonochemical method using iron pentacarbonyl and lanthanum carbonate as starting materials. The overall process involves three steps: formation of lanthanum carbonate using lanthanum nitrate and urea; reaction of the so-formed lanthanum carbonate with iron pentacarbonyl resulting in the formation of a precursor; calcination of the precursor to obtain nanocrystalline particles of LaFeO3. Transmission electron microscopy revealed the particles to have a mean size of about 30 nm. Study of the magnetic properties of nanocrystalline LaFeO3 particles shows a coercivity of ∼250 Oe, while the saturation magnetization is ∼40 memu g−1.

Graphical abstract: Sonochemical synthesis of nanocrystalline LaFeO3

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Article information

DOI
https://doi.org/10.1039/B310110J
Article type
Paper
Submitted
28 Aug 2003
Accepted
22 Oct 2003
First published
11 Nov 2003

J. Mater. Chem., 2004,14, 764-769

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Sonochemical synthesis of nanocrystalline LaFeO3

M. Sivakumar, A. Gedanken, W. Zhong, Y. H. Jiang, Y. W. Du, I. Brukental, D. Bhattacharya, Y. Yeshurun and I. Nowik, J. Mater. Chem., 2004, 14, 764 DOI: 10.1039/B310110J

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