Recent developments in the synthesis and stability of metal ferrite nanoparticles

Abstract

This article presents a comprehensive review on the synthesis and stability of ferrite nanoparticles such as nickel ferrite (NiFe₂O₄), zinc ferrite (ZnFe₂O₄), manganese ferrite (MnFe₂O₄), iron ferrite (Fe₂O₃), cobalt ferrite (CoFe₂O₄) and also mixed nanoparticles. Different synthetic methods for ferrite nanoparticles have been reviewed such as co-precipitation, thermal decomposition and hydrothermal, microwave-assisted and sonochemical methods. The effect on the stability of different capping agents like canola oil, glycerol, sodium dodecyl, sodium citrate, oleic acid, Triton-100 and sodium dodecyl benzene sulfonates has also been studied.

Keywords: Ferrite mixed nanoparticles; capping agent; hydrothermal method.

Figure 1.

Schematic of the formation mechanism of the nanoporous polyaniline and hollow MnFe₂O₄ nanocomposite.

Figure 2.

Illustration by the IR spectra of the formation of larger monodisperse magnetite nanoparticles using smaller nanoparticles of magnetite as seeds.

Figure 3.

General scheme for schematic synthesis of metal ferrite nanoparticles.