Hydrothermal synthesis of organic-inorganic hybrid nanoparticles in supercritical water

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

doi:10.2497/jjspm.54.48

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 journal › Article › peer-review

2 Citations (Scopus)

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 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 language	English
Pages (from-to)	48-52
Number of pages	5
Journal	Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume	54
Issue number	1
DOIs	https://doi.org/10.2497/jjspm.54.48
Publication status	Published - 2007 Jan

Keywords

Ceria
Hybrid nanoparticles
Hydrothermal synthesis
Supercritical water
Surface modification

ASJC Scopus subject areas

Mechanical Engineering
Industrial and Manufacturing Engineering
Metals and Alloys
Materials Chemistry

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AU - Ohara, Satoshi

AU - Hayashi, Naoki

AU - Zhang, Jing

AU - Umetsu, Mitsuo

AU - Naka, Takashi

AU - Adschiri, Tadafumi

PY - 2007/1

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AB - 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.

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KW - Hydrothermal synthesis

KW - Supercritical water

KW - Surface modification

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Hydrothermal synthesis of organic-inorganic hybrid nanoparticles in supercritical water

Abstract

Keywords

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