A simple solvothermal synthesis of MFe2O4 (M=Mn, Co and Ni) nanoparticles
By S. Yáñez-Vilar, M. Sánchez-Andújar, C. Gómez-Aguirre, J. Mira, M. A. Señarís-Rodríguez, S. Castro-García. 2009
180 citations recorded by the source corpus.
Abstract Nanoparticles of M Fe 2 O 4 ( M =Mn, Co and Ni), with diameters ranging from 5 to 10 nm, have been obtained through a solvothermal method. In this synthesis, an alcohol (benzyl alcohol or hexanol) is used as both a solvent and a ligand; it is not necessary, therefore, to add a surfactant, simplifying the preparation of the dispersed particles. We have studied the influence of the synthetic conditions (temperature, time of synthesis and nature of solvent) on the quality of the obtained ferrites and on their particle size. In this last aspect, we have to highlight that the solvent plays an important role on the particle size, obtaining the smallest diameters when hexanol was used as a solvent. In addition, the magnetic properties of the obtained compounds have been studied at room temperature (RT). These compounds show a superparamagnetic behaviour, as was expected for single domain nanoparticles, and good magnetization values. The maxima magnetization values of the M Fe 2 O 4 samples are quite high for such small nanoparticles; this is closely related to the high crystallinity of the particles obtained by the solvothermal method.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/2ed2ea0f6983157b5be7a52be4bcf51b53ffc72f
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Citations in the corpus
- Synthesis and surface modification of uniform MFe2O4 (M = Fe, Mn, and Co) nanoparticles with tunable sizes and functionalities (2012, background): “The magnetic and electrical properties of these nanoparticles (NP) can be modulated by replacing the divalent M2? cation totally or partially if the basic crystal structure is maintained (Yanez-Vilar et al. 2009).”
- Cobalt ferrite nanoparticles (CoFe2O4 MNPs) as catalyst and support: magnetically recoverable nanocatalysts in organic synthesis (2017, methodology): “A number of preparation techniques have been explored to synthesize CoFe2O4 nanoparticles such as microemulsion [46], sol-gel techniques [47], hydrothermal synthesis [48], solvothermal method [49], co-precipitation [50], electrochemical method [51], and combustion methods [52–54].”