Title:
METHOD FOR PRODUCING COMPOSITE PARTICLE DISPERSION LIQUID, COMPOSITE PARTICLES, AND METHOD FOR PRODUCING METALLIC NANOPARTICLE DISPERSION LIQUID
Document Type and Number:
WIPO Patent Application WO/2014/175278
Kind Code:
A1
Abstract:
Provided are: composite particles in which the rate at which metallic nanoparticles cover the surface of each dielectric particle is higher than that of conventional art; a method for producing a composite particle dispersion liquid with which it is possible to produce said composite particles; a composite including said composite particles; and a method for producing said composite. This method for producing a composite particle dispersion liquid comprises a step for producing a metallic nanoparticle dispersion liquid including negatively charged metallic nanoparticles, and a step for mixing said metallic nanoparticle dispersion liquid and a dielectric particle dispersion liquid including positively charged dielectric particles, wherein said step for producing said metallic nanoparticle dispersion liquid involves: preparing a liquid including metallic ions and a conjugate base of malic acid and/or isocitric acid; producing metallic nanoparticles by reducing the metallic ions in said liquid; and substituting said conjugate base of malic acid and/or isocitric acid in said liquid with a conjugate base of citric acid.
Inventors:
TAKEDA YOSUKE (JP)
SASAKURA HIDESHI (JP)
IKAWA KOHJI (JP)
OSHIMA KIYOSHI (JP)
SASAKURA HIDESHI (JP)
IKAWA KOHJI (JP)
OSHIMA KIYOSHI (JP)
Application Number:
PCT/JP2014/061322
Publication Date:
October 30, 2014
Filing Date:
April 22, 2014
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
B01J13/00; B22F1/054; B22F9/24; B82Y30/00; B82Y40/00; G01N21/41
Domestic Patent References:
| WO2011114812A1 | 2011-09-22 |
Foreign References:
| JP2005206931A | 2005-08-04 |
Other References:
TIAN,C. ET AL.: "Simple Strategy for Preparation of Core Colloids Modified with Metal Nanoparticles", JOURNAL OF PHYSICAL CHEMISTRY C, vol. 111, pages 3651 - 3657
HU ,Y. ET AL.: "Scalable preparation of Ultrathin Silica-Coated Ag Nanoparticles for SERS Application", APPLIED MATERIALS & INTERFACES, vol. 5, pages 10643 - 10649
SIMOVSKI,C.R.: "Surface-enhanced Raman scattering from silica core particles covered with silver nanoparticles", PHYSICAL REVIEW B, vol. 79, 24 June 2009 (2009-06-24), pages 214303 - 1 - 214303-5
NISHI,H. ET AL.: "Facile preparation of gold nanoparticle with diarylethene polymers by disodium malate and its photoreversible optical properties", DYES AND PIGMENTS, vol. 92, 23 April 2011 (2011-04-23), pages 847 - 853
HU ,Y. ET AL.: "Scalable preparation of Ultrathin Silica-Coated Ag Nanoparticles for SERS Application", APPLIED MATERIALS & INTERFACES, vol. 5, pages 10643 - 10649
SIMOVSKI,C.R.: "Surface-enhanced Raman scattering from silica core particles covered with silver nanoparticles", PHYSICAL REVIEW B, vol. 79, 24 June 2009 (2009-06-24), pages 214303 - 1 - 214303-5
NISHI,H. ET AL.: "Facile preparation of gold nanoparticle with diarylethene polymers by disodium malate and its photoreversible optical properties", DYES AND PIGMENTS, vol. 92, 23 April 2011 (2011-04-23), pages 847 - 853
Attorney, Agent or Firm:
SENMYO, Kenji et al. (SIA Kanda Square 17, Kanda-konyacho, Chiyoda-k, Tokyo 35, JP)
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