Title:
貴金属含有耐熱性酸化物の製造方法
Document Type and Number:
Japanese Patent JP4771681
Kind Code:
B2
Abstract:
An object of the present invention is to provide a method for producing a noble metal-containing heat-resistant oxide having excellent durability under a high temperature atmosphere. According to the method for producing a noble metal-containing heat-resistant oxide of the present invention, a coordination element material containing coordination elements is blended and the obtained first precursor composition is subjected to a first heat treatment to form a first heat-treated composition (crystal lattice) such as a perovskite-type composite oxide or a fluorite-type composite oxide. Then, a noble metal element material containing a noble metal element such as Pt, Rh or Pd is blended with the first heat-treated composition and the secondary precursor composition thus obtained is subjected to a second heat treatment (baking) at a temperature which is higher than that of the first heat treatment and is 600°C or higher.
Inventors:
Hirohisa Tanaka
Tanko
Mari Nishinishi
Taniguchi Shoji
Tanko
Mari Nishinishi
Taniguchi Shoji
Application Number:
JP2004322580A
Publication Date:
September 14, 2011
Filing Date:
November 05, 2004
Export Citation:
Assignee:
Daihatsu Motor Co., Ltd.
International Classes:
C01G55/00; B01D53/94; B01J23/58; B01J23/63; B01J23/89; B01J37/08
Domestic Patent References:
| JP2004043217A | ||||
| JP2004243305A | ||||
| JP1168343A |
Attorney, Agent or Firm:
Hiroyuki Okamoto