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

Satoshi WADA; Ai NOZAWA; Shogo IWATSUKI; Tetsuo KUWABARA; Takahiro TAKEI; Nobuhiro KUMADA; Petr PULPAN; Hiroshi UCHIDA

doi:10.2109/jcersj2.118.688

Feature: Evolution of Dielectric Materials: Papers

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

Satoshi WADA, Ai NOZAWA, Shogo IWATSUKI, Tetsuo KUWABARA, Takahiro TAKEI, Nobuhiro KUMADA, Petr PULPAN, Hiroshi UCHIDA

Author information

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

Keywords: Barium titanate, Strontium titanate, Nanocube, Solvothermal method, Accumulation, Smart glue

JOURNAL FREE ACCESS

2010 Volume 118 Issue 1380 Pages 688-690

DOI https://doi.org/10.2109/jcersj2.118.688

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Abstract

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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