Hydrothermal Synthesis of Organic-Inorganic Hybrid Nanoparticles in Supercritical Water

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  • Ohara Satoshi
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials
  • Hayashi Naoki
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials
  • Zhang Jing
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials
  • Umetsu Mitsuo
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials
  • Naka Takashi
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials
  • Adschiri Tadafumi
    Tohoku University, Institute of Multidisciplinary Research for Advanced Materials

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Other Title
  • 超臨界水熱法による有機‐無機ハイブリッドナノ粒子の合成
  • 超臨界水熱法による有機-無機ハイブリッドナノ粒子の合成
  • チョウリンカイ スイネツホウ ニ ヨル ユウキ ムキ ハイブリッド ナノ リュウシ ノ ゴウセイ

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Abstract

We propose a new method to synthesize organic-inorganic hybrid nanoparticles using supercritical hydrothermal synthesis. By introducing organic species, e.g., carboxylic acids, during supercritical hydrothermal synthesis, CeO2 nanoparticles whose surface was chemically bonded with organic molecules were synthesized. Particle size was about 5nm and its particle size distribution was very narrow. The hybrid nanoparticles were dispersed perfectly in organic solvent. After the drying of this colloid, we obtained self-assembly structure of nanocrystals.

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