Title:
METAL NANOPARTICLES, DISPERSION CONTAINING SAME, AND PROCESS FOR PRODUCTION OF SAME
Document Type and Number:
WIPO Patent Application WO/2011/013542
Kind Code:
A1
Abstract:
For the purpose of producing a large quantity of metal nanoparticles capable of being dispersed stably in a solvent without requiring the addition of any aggregation-inhibiting substance such as a surfactant and at low cost, the metal nanoparticles is produced through the steps mentioned below.
A powder of a metal compound is suspended in a solvent. Subsequently, the suspension is heated at a predetermined temperature while passing through an atmosphere of an inert gas, a hydrogen gas or other non-oxidative gas. Specifically, for example, a silver oxide miropowder is used as a raw material powder, and a special-grade γ-butyrolactone reagent is used as the solvent. The solvent in a volume of 5 mL is placed in a 10-mL glass vessel, the raw material powder in an amount of about 40 mg is introduced into the glass vessel, and the resulting mixture is heated at about 135˚C for 15 minutes on a hot plate under deaeration conditions in which the bubbling with a nitrogen gas is carried out at a rate of about 20 mL per minute while agitating the mixture by means of a magnetic stirrer.
Inventors:
KAWASAKI MITSUO (JP)
WADA MASASHI (JP)
SUGIMOTO NOBUYUKI (JP)
KAJITA OSAMU (JP)
WADA MASASHI (JP)
SUGIMOTO NOBUYUKI (JP)
KAJITA OSAMU (JP)
Application Number:
PCT/JP2010/062200
Publication Date:
February 03, 2011
Filing Date:
July 21, 2010
Export Citation:
Assignee:
UNIV KYOTO (JP)
FUKUDA METAL FOIL POWDER (JP)
KAWASAKI MITSUO (JP)
WADA MASASHI (JP)
SUGIMOTO NOBUYUKI (JP)
KAJITA OSAMU (JP)
FUKUDA METAL FOIL POWDER (JP)
KAWASAKI MITSUO (JP)
WADA MASASHI (JP)
SUGIMOTO NOBUYUKI (JP)
KAJITA OSAMU (JP)
International Classes:
B22F9/00; B22F9/20; B22F9/30; B82Y30/00; B82Y40/00; C09C1/62; C09C3/08; C09D11/00; C09D11/38; H01B1/22; H01B13/00; B22F1/054
Domestic Patent References:
WO2009060803A1 | 2009-05-14 | |||
WO2008114866A1 | 2008-09-25 |
Foreign References:
JP2007056321A | 2007-03-08 | |||
JP2004307881A | 2004-11-04 | |||
JP2005097677A | 2005-04-14 | |||
JP2008517153A | 2008-05-22 | |||
JP2006299354A | 2006-11-02 |
Attorney, Agent or Firm:
MORIWAKI, Masashi et al. (JP)
Masashi Moriwaki (JP)
Masashi Moriwaki (JP)
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