Controlled synthesis and phase characterization of Fe-based nanoparticles obtained by thermal decomposition

Iron oxide nanoparticles were synthesized by the thermal decomposition of Fe(acac) 3 and Fe(CO) 5. Three different homogeneous procedures were used for the controlled synthesis of Fe 3O 4, γ-Fe 2O 3 and Fe 3O 4/γ-Fe 2O 3 mixture nanocrystals. A combination of characterization techniques was used in...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-09, Vol.316 (2), p.e1-e4
Main Authors: Simeonidis, K., Mourdikoudis, S., Moulla, M., Tsiaoussis, I., Martinez-Boubeta, C., Angelakeris, M., Dendrinou-Samara, C., Kalogirou, O.
Format: Article
Language:English
Subjects:
Chemical analysis
Maghemite
Magnetic property
Magnetite
Nanoparticle
Structural property
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Summary:Iron oxide nanoparticles were synthesized by the thermal decomposition of Fe(acac) 3 and Fe(CO) 5. Three different homogeneous procedures were used for the controlled synthesis of Fe 3O 4, γ-Fe 2O 3 and Fe 3O 4/γ-Fe 2O 3 mixture nanocrystals. A combination of characterization techniques was used in order to distinguish these oxides. The controllable size, the narrow distribution and the rhombic self-assembly of the nanoparticles were revealed by the high-resolution transmission electron microscopy images and the X-ray powder diffraction results. For the quantitative analysis of the samples manganometry was used. Preliminary magnetic measurements indicated the size and composition dependence of saturation magnetization, a superparamagnetic behavior of the samples and some ferromagnetic features.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2007.02.009