发明名称 |
METAL CATALYST AND METHOD FOR PREPARATION THEREOF |
摘要 |
A metal catalyst containing fine metal particles, characterized in that the fine metal particles have a particle diameter of 3 nm or less and have a proportion of a metal in the state of a metallic bonding of 40 % or more, which proportion is determined through subjecting a peak ascribed to the bonding energy inherent in a metal being measured by an X-ray photon analyzer, to a wave form separation. Platinum fine particles are preferred as the above fine metal particles. Preferably, the metal particles are carried on the surface of carrier particles by a method comprising reducing a metal ion generating the metal particles by the action of a reducing agent to thereby precipitate the metal in the form of fine particles on the surface of carrier particles. Further, the above fine metal particles can have the above-mentioned proportion of a metal in the state of a metallic bonding, through the decrease of its oxidation state by the reduction after precipitation. |
申请公布号 |
WO2005120703(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
WO2005JP09271 |
申请日期 |
2005.05.20 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD.;MAJIMA, MASATOSHI;SHIMODA, KOHEI;YAMAGUCHI, KOUJI |
发明人 |
MAJIMA, MASATOSHI;SHIMODA, KOHEI;YAMAGUCHI, KOUJI |
分类号 |
B01J23/42;B01J35/00;B01J37/16;H01M4/90;H01M4/92 |
主分类号 |
B01J23/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|