Abstract
γ-Fe2O3 nanoparticles with an average size of 15 nm were prepared by thermal decomposition of the carboxylic complex combination of Fe (III)-malonate type at low temperature. This precursor was obtained in the redox reaction between Fe (III) nitrate and 1,3-propane diol. The composition and structure formulasformulas proposed for this new compound were reproducibly confirmed by elemental and thermal analysis. The conversion mechanism of the Fe (III)-malonate to γ-Fe2O3 was discussed by means of structure-chemical considerations. Phase composition and magnetic properties of the γ-Fe2O3 powder were studied by XRD, Mossbauer spectroscopy and magnetic measurements.
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