Title:
貴金属コロイド、貴金属微粒子、組成物および貴金属微粒子の製造方法
Document Type and Number:
Japanese Patent JP4368855
Kind Code:
B2
Abstract:
To provide a precious metal colloid enabling a production in simply and in low cost, a long-term storage, and a formation of a thin film having a high conductivity, a precious metal fine-particle, a composition including the same, and a method for producing a precious metal fine-particle for forming such precious metal colloid, which is a precious metal colloid in which a protection component protects a precious metal fine-particle selected from gold, silver, platinum, and palladium, a precious metal colloid in which the maximum peak of 13 C-NMR spectrum of the protection component separated from the precious metal colloid by ultracentrifugation treatment presents in 160 to 190 ppm other than peaks of a primary carbon and an aromatic carbon, or a precious metal colloid in which peaks of 13 C-NMR spectrum present in 20 to 90 ppm and 160 to 190 ppm. A reduction agent, such as a peptide or other amino acid compound and glucosamine, and alkali for supporting a reductivity of the reduction agent are added to a solution dissolving a precious metal containing compound to form the precious metal fine-particle by a reduction reaction of a precious metal ion in the precious metal containing compound.
Inventors:
Masatoshi Watanabe
Application Number:
JP2005513601A
Publication Date:
November 18, 2009
Filing Date:
June 21, 2004
Export Citation:
Assignee:
Tamati L-O Co., Ltd.
International Classes:
B22F9/00; B01F23/70; B01J13/00; B22F1/0545; B22F9/24
Domestic Patent References:
| JP2002245854A | ||||
| JP2002180110A | ||||
| JP10330288A | ||||
| JP2002121606A | ||||
| JP62121640A |
Attorney, Agent or Firm:
Takahisa Sato