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Title:
PLATINUM BLACK POWDER, PLATINUM BLACK COLLOID, METHOD FOR PRODUCING PLATINUM BLACK POWDER, AND METHOD FOR PRODUCING PLATINUM BLACK COLLOID
Document Type and Number:
WIPO Patent Application WO/2010/082443
Kind Code:
A1
Abstract:
Disclosed is a highly active platinum black catalyst powder.  The platinum black powder has a BET specific surface area of 80 m2/g or more, or even 90 m2/g or more.  The platinum black powder is produced as follows: a nanocolloid of hexahydroxoplatinic acid is produced in a liquid phase; the nanocolloid is reduced by adding a reducing agent thereto, so that a platinum-containing colloid is formed; the platinum-containing colloid is filtrated, and cleaned with purified water; and the cleaned platinum-containing colloid is dried.

Inventors:
ITO, Takashi (C/O Furuya Metal Co. Ltd, 37-5, Minami Otsuka 2-chome, Toshima-k, Tokyo 05, 〒1700005, JP)
伊藤 賢 (〒05 東京都豊島区南大塚二丁目37番5号 株式会社フルヤ金属内 Tokyo, 〒1700005, JP)
Application Number:
JP2009/071740
Publication Date:
July 22, 2010
Filing Date:
December 28, 2009
Export Citation:
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Assignee:
Furuya Metal Co., Ltd. (37-5, Minami Otsuka 2-chome Toshima-k, Tokyo 05, 〒1700005, JP)
株式会社フルヤ金属 (〒05 東京都豊島区南大塚二丁目37番5号 Tokyo, 〒1700005, JP)
ITO, Takashi (C/O Furuya Metal Co. Ltd, 37-5, Minami Otsuka 2-chome, Toshima-k, Tokyo 05, 〒1700005, JP)
International Classes:
B22F1/00; B22F9/00; B22F9/20; B22F9/24; C22C5/04
Attorney, Agent or Firm:
IMASHITA, Katsuhiro et al. (I'LL, Setoguchi Bldg. 3rd fl. 12-5, Nishi-Shimbashi 2-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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