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Synthesis and properties of SnFeO nanoparticles obtained by a proteic sol–gel method

Journal of Nanoparticle Research, ISSN: 1572-896X, Vol: 20, Issue: 8
2018
  • 11
    Citations
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  • 15
    Captures
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Metrics Details

  • Citations
    11
    • Citation Indexes
      11
  • Captures
    15

Article Description

Iron-doped SnO nanoparticles with chemical formula SnFeO (x = 0.02, 0.05 and 0.10 at%) were successfully produced by a proteic sol–gel method. Thermogravimetric analysis and differential scanning calorimetry were performed to investigate the thermal behavior of the precursor powders as well as to select the appropriate calcination temperatures for oxide formation. X-ray absorption near-edge spectroscopy studies were carried out to determine the valence state of the transition metal used as dopant. Structural, morphological, and optical properties of the synthesized materials were studied by X-ray diffraction, Mössbauer spectroscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy, and ultraviolet-visible spectroscopy. The results confirmed the formation of nanometric spherical particles of single-phased SnO with rutile-type tetragonal structure. Iron doping was accomplished in the form of Fe substituting for Sn in the SnO matrix, with the creation of oxygen vacancies to achieve charge balance. Band gaps of SnO were found to be unaffected by the introduction of iron.

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