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Sonochemical synthesis and chracterization of Mn3O4 nanoparticles
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2010 (English)In: Central European Journal of Chemistry, ISSN 1895-1066, Vol. 8, no 3, 633-638 p.Article in journal (Refereed) Published
Abstract [en]

We report on the synthesis of Mn3O4 nanoparticles (NPs) using a novel sonochemical method without requiring any pH adjustment. Synthesized material was identified as tetragonal hausmannite crystal structure model of Mn3O4 from XRD analysis. Crystallite size was estimated from x-ray line profile fitting to be 17 +/- 5 nm. FTIR analysis revealed stretching vibrations of metal ions in tetrahedral and octahedral coordination confirming the crystal structure. TEM analysis revealed a dominantly cubic morphology of NPs with an average size of similar to 20 nm. Magnetic evaluation revealed a blocking temperature, T-B of 40 K above which the material behaves paramagnetic. Asymmetric coercive field is attributed to the interaction between ferromagnetic Mn3O4 and antiferromagnetic Mn oxide at the surface of nanoparticles.

Place, publisher, year, edition, pages
2010. Vol. 8, no 3, 633-638 p.
Keyword [en]
Sonochemistry, Mn3O4, Nanomaterials, Coercive Field, Chemical Synthesis, hydrocarbon oxidation, nanocrystals, route, powders, oxides
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-19405DOI: 10.2478/s11532-010-0037-8ISI: 000277021300021Scopus ID: 2-s2.0-77951900850OAI: oai:DiVA.org:kth-19405DiVA: diva2:337452
Funder
Knut and Alice Wallenberg Foundation
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-14Bibliographically approved

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Toprak, Muhammet S.

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