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Properties of Iron Oxide Nanoparticles Synthesized at Different Temperatures

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Abstract

Iron oxide nanoparticles were synthesized by co-precipitation in air atmosphere at different temperatures and their structural and magnetic properties were investigated. The mean particle sizes of iron oxide nanoparticles were calculated from the X-ray diffraction (XRD) patterns using the Scherrer equation. Fourier transform infrared spectroscopy analysis exhibited the vibration bands at 563 cm−1 and 620 cm−1 confirming the formation of Fe3O4 and γ-Fe2O3, respectively. Morphological observation was made by a transmission electron microscope and the particle size of iron oxide nanoparticles was found to be around 9 nm which is consistent with the particle size calculated according to the XRD patterns. It was observed that the intensity of the peaks in the patterns and crystallinity increased as the temperature increased. Magnetization curves showed zero coercivities indicating that the samples are superparamagnetic.

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Authors and Affiliations

  1. Physics Department, Science & Literature Faculty, Balikesir University, 10145, Cagis, Balikesir, Turkey

    Oznur Karaagac & Hakan Kockar

  2. Chemistry Department, Science & Literature Faculty, Balikesir University, 10145, Cagis, Balikesir, Turkey

    Taner Tanrisever

Authors
  1. Oznur Karaagac
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  2. Hakan Kockar
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  3. Taner Tanrisever
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Correspondence to Oznur Karaagac.

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Karaagac, O., Kockar, H. & Tanrisever, T. Properties of Iron Oxide Nanoparticles Synthesized at Different Temperatures. J Supercond Nov Magn 24, 675–678 (2011). https://doi.org/10.1007/s10948-010-0932-4

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  • DOI: https://doi.org/10.1007/s10948-010-0932-4

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