One-pot synthesis of stable colloidal solutions of MFe2O4 nanoparticles using oleylamine as solvent and stabilizer

Leonardo Pérez-Mirabet, Eduardo Solano, Fernando Martínez-Julián, Roger Guzmán, Jordi Arbiol, Teresa Puig, Xavier Obradors, Alberto Pomar, Ramón Yáñez, Josep Ros, Susagna Ricart

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30 Citations (Scopus)

Abstract

An easy, efficient, reproducible and scalable one-pot synthetic methodology to obtain magnetic spinel ferrite nanoparticles has been developed. This approach is based on one-pot thermal decomposition of Fe(acac)3 and M(acac)2 (M = Co, Mn, Cu and Zn) in oleylamine, which also acts as a capping ligand, by producing stable colloidal dispersions of nanoparticles in non-polar solvents. The properties of the nanoparticles have been studied via different techniques, such as transmission electron microscopy, which shows that nanoparticles are monocrystallines and a narrow dispersion in size; magnetic analyses have demonstrated that the resulting ferrite nanoparticles show high saturation values and superparamagnetic behavior at room temperature; X-ray diffraction has also been performed, and it confirms that the synthesized nanoparticles have a spinel structure. Complementarily, ligand exchange has been also carried out in order to produce dispersions of the synthesized nanoparticles in polar media. © 2012 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)966-972
JournalMaterials Research Bulletin
Volume48
Issue number3
DOIs
Publication statusPublished - 1 Mar 2013

Keywords

  • A. Nanostructures
  • A. Oxides
  • B. Chemical synthesis
  • D. Magnetic properties

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    Pérez-Mirabet, L., Solano, E., Martínez-Julián, F., Guzmán, R., Arbiol, J., Puig, T., Obradors, X., Pomar, A., Yáñez, R., Ros, J., & Ricart, S. (2013). One-pot synthesis of stable colloidal solutions of MFe2O4 nanoparticles using oleylamine as solvent and stabilizer. Materials Research Bulletin, 48(3), 966-972. https://doi.org/10.1016/j.materresbull.2012.11.086