Dispersion of barium titanate and strontium titanate nanocubes and their selective accumulations

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  • WADA Satoshi
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • NOZAWA Ai
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • IWATSUKI Shogo
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • KUWABARA Tetsuo
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • TAKEI Takahiro
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • KUMADA Nobuhiro
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • PULPAN Petr
    Material Science and Technology, Interdisciplinary Graduate School of Medical and Engineering, University of Yamanashi
  • UCHIDA Hiroshi
    Department of Chemistry, Faculty of Science and Technology, Sophia University

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Barium titanate (BaTiO3, BT) and strontium titanate (SrTiO3, ST) nanocube particles were prepared by a solvothermal method. The prepared particles were collected by a centrifugal separator. The X-ray diffraction (XRD) measurement and a transmittance electron microscope (TEM) observation confirmed the formation of perovskite BT and ST nanocube particles with sizes of around 17 nm. These nanocube particles were monodistributed in hexane with tri-n-butylphosphine oxide (TBPO) as dispersant, separately, and then, the accumulations composed of the BT and ST nanocubes were built up using a selective catalytic reaction between 3-bromopropylphosphonic acid (BP) and aminomethylphosphonic acid (AM) as smart glue. The TEM observation confirmed that a part of accumulations showed a hetrointerface connection between BT and ST.

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