发明名称 |
METHOD FOR PRODUCING CATALYST FOR EXHAUST GAS REMOVAL, AND CATALYST OBTAINED BY SAID PRODUCTION METHOD |
摘要 |
An objective of the present invention is to provide a method for producing a catalyst for exhaust gas removal having excellent heat tolerance and purification performance within a wide range of atmospheres and a catalyst obtained by the production method. The present invention relates to a method for supporting catalyst metal particles, comprising: (a) adding an iridium precursor and a palladium precursor to a solvent containing at least one member selected from the group consisting of polyvinylpyrrolidone, N-methylpyrrolidone, N-vinyl-2-pyrrolidone, and ethylene glycol; (b) adding a reducing agent to the obtained catalyst metal colloid; (c) obtaining a concentrated solution containing catalyst metal particles by subjecting the obtained solution to heat reflux; and (d) supporting the catalyst metal particles on a carrier, wherein the iridium content of the catalyst metal particles accounts for 3% to 10% by mass of the total mass of iridium and palladium. |
申请公布号 |
EP2926900(A1) |
申请公布日期 |
2015.10.07 |
申请号 |
EP20130860288 |
申请日期 |
2013.11.28 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
NAGANUMA YUKI;AOKI YUKI;SUZUKI HIROMASA |
分类号 |
B01J23/46;B01D53/94;F01N3/10 |
主分类号 |
B01J23/46 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|