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 (Kyoto University Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto-sh, Kyoto 10, 〒6158510, JP)
川崎 三津夫 (〒10 京都府京都市西京区京都大学桂 国立大学法人京都大学大学院工学研究科内 Kyoto, 〒6158510, JP)
WADA, Masashi (20,Nakatomi-cho Nishinoyama,Yamashina-ku,Kyoto-sh, Kyoto 05, 〒6078305, JP)
和田 仁 (〒05 京都府京都市山科区西野山中臣町２０番地 福田金属箔粉工業株式会社内 Kyoto, 〒6078305, JP)
川崎 三津夫 (〒10 京都府京都市西京区京都大学桂 国立大学法人京都大学大学院工学研究科内 Kyoto, 〒6158510, JP)
WADA, Masashi (20,Nakatomi-cho Nishinoyama,Yamashina-ku,Kyoto-sh, Kyoto 05, 〒6078305, JP)
和田 仁 (〒05 京都府京都市山科区西野山中臣町２０番地 福田金属箔粉工業株式会社内 Kyoto, 〒6078305, JP)
Application Number:
JP2010/062200
Publication Date:
February 03, 2011
Filing Date:
July 21, 2010
Export Citation:
Assignee:
Kyoto University (36-1, Yoshida-Honmachi Sakyo-ku, Kyoto-sh, Kyoto 01, 〒6068501, JP)
国立大学法人京都大学 (〒01 京都府京都市左京区吉田本町３６番地１ Kyoto, 〒6068501, JP)
FUKUDA METAL FOIL & POWDER CO., LTD. (176 Nakanono-cho, Matsubara-dori Muromachi Nishi-iru Shimogyo-ku, Kyoto-sh, Kyoto 35, 〒6008435, JP)
福田金属箔粉工業株式会社 (〒35 京都府京都市下京区松原通室町西入中野之町１７６番地 Kyoto, 〒6008435, JP)
KAWASAKI, Mitsuo (Kyoto University Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto-sh, Kyoto 10, 〒6158510, JP)
川崎 三津夫 (〒10 京都府京都市西京区京都大学桂 国立大学法人京都大学大学院工学研究科内 Kyoto, 〒6158510, JP)
国立大学法人京都大学 (〒01 京都府京都市左京区吉田本町３６番地１ Kyoto, 〒6068501, JP)
FUKUDA METAL FOIL & POWDER CO., LTD. (176 Nakanono-cho, Matsubara-dori Muromachi Nishi-iru Shimogyo-ku, Kyoto-sh, Kyoto 35, 〒6008435, JP)
福田金属箔粉工業株式会社 (〒35 京都府京都市下京区松原通室町西入中野之町１７６番地 Kyoto, 〒6008435, JP)
KAWASAKI, Mitsuo (Kyoto University Kyoto Daigaku Katsura, Nishikyo-ku, Kyoto-sh, Kyoto 10, 〒6158510, JP)
川崎 三津夫 (〒10 京都府京都市西京区京都大学桂 国立大学法人京都大学大学院工学研究科内 Kyoto, 〒6158510, JP)
International Classes:
B22F9/00; B22F1/00; B22F9/20; B22F9/30; C09D11/00; H01B1/22; H01B13/00
Attorney, Agent or Firm:
MORIWAKI, Masashi et al. (Hase-building No.5, 637 Suiginya-cho, Karasumadori Shijyosagaru, Shimogyo-ku, Kyoto-sh, Kyoto 11, 〒6008411, JP)