Hydrothermal synthesis of organic-inorganic hybrid nanoparticles in supercritical water

Satoshi Ohara, Naoki Hayashi, Jing Zhang, Mitsuo Umetsu, Takashi Naka, Tadafumi Adschiri

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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 5 nm 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.

Original languageEnglish
Pages (from-to)48-52
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Issue number1
Publication statusPublished - 2007 Jan


  • Ceria
  • Hybrid nanoparticles
  • Hydrothermal synthesis
  • Supercritical water
  • Surface modification


Dive into the research topics of 'Hydrothermal synthesis of organic-inorganic hybrid nanoparticles in supercritical water'. Together they form a unique fingerprint.

Cite this