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Issue 4, 2004
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Sonochemical synthesis of nanocrystalline LaFeO3

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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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Publication details

The article was received on 28 Aug 2003, accepted on 22 Oct 2003 and first published on 11 Nov 2003

Article type: Paper
DOI: 10.1039/B310110J
Citation: 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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