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Size controlled sonochemical synthesis of highly crystalline superparamagnetic Mn-Zn ferrite nanoparticles in aqueous medium

Title
Size controlled sonochemical synthesis of highly crystalline superparamagnetic Mn-Zn ferrite nanoparticles in aqueous medium
Authors
Abbas, MohamedTorati, RamuluRao, B. ParvatheeswaraAbdel-Hamed, M. O.Kim, CheolGi
DGIST Authors
Kim, CheolGi
Issue Date
2015-09-25
Citation
Journal of Alloys and Compounds, 644, 774-782
Type
Article
Article Type
Article
Keywords
AgglomerationAlcoholsCalcination ReactionsChemical ReactionsCrystalline MaterialsCrystalline ParticlesCubic Spinel StructureDeoxygenated ConditionsDifferent CompositionsFerriteFourier Transform Infrared SpectroscopyHigh Magnetic MomentsMagnetic MomentsMagnetic PropertiesManganeseMn-Zn Fe2O4 NpsNanomagneticsNanoparticlesPhysio-Chemical PropertiesPolyolReaction KineticsSono-Chemical SynthesisSonochemistrySuperparamagnetismSurface ReactionsSynthesis (Chemical)Thermogravimetric AnalysisTransmission Electron MicroscopyX Ray DiffractionZinc
ISSN
0925-8388
Abstract
Monodisperse MnxZn1-xFe2O4 (x = 0.2, 0.5 and 0.8) nanoparticles have been synthesized using two different routes namely sonochemical and polyol methods, and the shape and size along with physiochemical properties of the nanoparticles were compared in detail. In both the routes, the synthesis was performed in a single reaction without the use of any surfactant and deoxygenated conditions. The reaction kinetics and surface adsorption characteristics of nanoparticles were observed by thermogravimetric analysis and Fourier transform infrared spectroscopy measurements. X-ray diffraction patterns confirmed the formation of a pure ferrite phase with cubic spinel structure, and the patterns further clearly indicate that the sonochemical method produces highly crystalline particles without any post calcination reaction, comparing with the polyol process. Transmission electron microscopy results reveal that the nanoparticles synthesized by polyol method are mostly aggregated and spherical in nature whereas the nanoparticles produced by sonochemical method are monodisperse large particles with cubic like shapes. The overall studies demonstrated that the sonochemical method is facile, reliable, rapid and very attractive for the aqueous synthesis of highly crystalline and high magnetic moment (84.5 emu/g) monodisperse superparamagnetic Mn-Zn ferrite nanoparticles which considered as potential materials for various applications. © 2015 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/5169
DOI
10.1016/j.jallcom.2015.05.101
Publisher
Elsevier
Related Researcher
  • Author Kim, Cheol Gi Lab for NanoBio-MatErials & SpinTronics(nBEST)
  • Research Interests Magnetic Materials and Spintronics; Converging Technology of Nanomaterials and Biomaterials; Bio-NEMS;MEMS
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceLab for NanoBio-Materials & SpinTronics(nBEST)1. Journal Articles


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