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The Valence State Analysis of Ti in FeTiO3 by Soft X-Ray Spectroscopy

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Abstract.

The measurement of soft X-ray spectra, Ti Kα1,2, Lα1,2 and O Kα, of Ti in several titanium oxide compounds was carried out by FE-WD-EPMA (wavelength dispersive – electron probe micro-analyzer with field emission type electron gun) and HRXRF (high-resolution X-ray fluorescence spectroscopy). From the results of measurements, it was found that the valence state of Ti in FeTiO3 (ilmenite) was at least partially TiIII, might be the mixed state of TiIV and TiIII. And, Ti in MgTiO3 (ilmenite system) was confirmed as TiIV. From the discussion, it can be presumed that the effective charge of the oxygen should be not-uniform and should be different subtlety by the cationic difference, Fe or Mg, even if it had equal crystal structure of the ilmenite system, and that this subtlety difference gave any effects on the valence state of Ti.

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Authors and Affiliations

  1. Materials Analysis Station, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba-shi, Ibaraki, Japan

    Sei Fukushima, Takashi Kimura & Kenji Nishida

  2. Harima Office, National Institute for Materials Science, BL15XU, Spring-8, Kohto 1-1-1, Sayo-cho, 679-5148, Sayo-gun, Hyogo, Japan

    Vlaicu A. Mihai, Hideki Yoshikawa & Masahiro Kimura

  3. Department of Applied Chemistry, Okayama University, Tsushima-naka 3-1-1, 700-8530, Okayama, Japan

    Tatsuo Fujii

  4. The Institute for Chemical Research, Kyoto University, Gokashyo, 611-0011, Uji, Kyoto, Japan

    Hirofumi Oohashi & Yoshiaki Ito

  5. Hyogo Prefectural Institute of Industrial Research 3-1-12, Yukihira-cho, Suma-ku, 654-0037, Kobe, Japan

    Michiru Yamashita

Authors
  1. Sei Fukushima
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  2. Takashi Kimura
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  3. Kenji Nishida
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  4. Vlaicu A. Mihai
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  5. Hideki Yoshikawa
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  6. Masahiro Kimura
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  7. Tatsuo Fujii
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  8. Hirofumi Oohashi
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  9. Yoshiaki Ito
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  10. Michiru Yamashita
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Correspondence to Sei Fukushima.

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Fukushima, S., Kimura, T., Nishida, K. et al. The Valence State Analysis of Ti in FeTiO3 by Soft X-Ray Spectroscopy. Microchim Acta 155, 141–145 (2006). https://doi.org/10.1007/s00604-006-0532-y

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  • DOI: https://doi.org/10.1007/s00604-006-0532-y

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