Low-temperature syntheses of cubic BaTiO3 nanoparticles in highly basic aqueous solution

Hiroyuki Kageyama, Yuya Oaki, Yoko Takezawa, Toshimasa Suzuki, Hiroaki Imai

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Cubic BaTiO3 particles of ca. 100nm in diameter were produced at 25 to 60°C in a highly basic aqueous solution system. The crystalline phase was purely formed by reaction of barium hydroxide and anatase TiO2 nanoparticles under the highly basic condition. The formation of the pure phase at a lower temperature requires a higher concentration of NaOH and a longer reaction period. At room temperature (25°C), the crystalline BaTiO 3 was obtained through the reaction with 5.2 mol/kg of NaOH for 168 h. A specific mesocrystal architecture of BaTiO3 consisting of oriented small units was formed as an intermediate at the initial stage of crystal growth.

本文言語English
ページ(範囲)388-392
ページ数5
ジャーナルJournal of the Ceramic Society of Japan
121
1412
DOI
出版ステータスPublished - 2013 4月

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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