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Synthesis of iron oxide/manganese oxide composite particles and their magnetic properties

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Abstract

We have investigated the synthesis and structural as well as magnetic properties of composite nanoparticles, including core–shell particles, consisting of iron and manganese oxides. The synthesis is based on thermal decomposition of suitable metal oleates in a high boiling solvent. Seed particles are used to avoid homogeneous nucleation and to initiate the formation of heterogeneous systems. The as-synthesized particles were characterized by energy filtered transmission electron microscopy (EFTEM) and SQUID magnetometry. The synthesized nanoparticles had diameters between 10 and 20 nm and consisted of manganese oxide and iron oxide.

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Notes

  1. The lattice constants for FeO and MnO are 4,275–4,302 Å (depending on the iron/oxygen ratio; Cornell & Schwertmann 2003; McCammon et al. 1984) and 4,446 Å (Sasaki et al. 1980), respectively.

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Authors and Affiliations

  1. University of Augsburg, Institute of Physics, Universitätsstrasse 1, 86159, Augsburg, Germany

    Aladin Ullrich, Stefan Hohenberger, Ayberk Özden & Siegfried Horn

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  1. Aladin Ullrich
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  2. Stefan Hohenberger
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  3. Ayberk Özden
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  4. Siegfried Horn
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Correspondence to Aladin Ullrich.

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Ullrich, A., Hohenberger, S., Özden, A. et al. Synthesis of iron oxide/manganese oxide composite particles and their magnetic properties. J Nanopart Res 16, 2580 (2014). https://doi.org/10.1007/s11051-014-2580-2

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