发明名称 |
INORGANIC OXIDE, EXHAUST GAS PURIFYING CATALYST CARRIER, AND EXHAUST GAS PURIFYING CATALYST |
摘要 |
A particulate inorganic oxide containing aluminum oxide, a metal oxide forming no composite oxide with aluminum oxide, and an additional element including at least one of a rare-earth element and an alkali earth element, the inorganic oxide containing a secondary particle formed by aggregating primary particles; wherein at least a part of the secondary particle includes a plurality of first primary particles, each having a particle size of 100 nm or less, containing aluminum oxide and the additional element, and a plurality of second primary particles, each having a particle size of 100 nm or less, containing the metal oxide and the additional element; wherein at least a part of the first and second primary particles has a surface concentrated region where the additional element has a locally increased content in a surface layer part thereof. ® KIPO & WIPO 2007 |
申请公布号 |
KR20070004749(A) |
申请公布日期 |
2007.01.09 |
申请号 |
KR20067019441 |
申请日期 |
2006.09.21 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
MORIKAWA AKIRA;TANABE TOSHITAKA;YAMAMURA KAE;TAKAHASHI NAOKI;SUZUKI HIROMASA;SATO AKEMI;ISHIKIRIYAMA MAMORU;KANAZAWA TAKAAKI;KUNO OJI |
分类号 |
B01J23/00;B01D53/86;B01D53/94;B01J21/02;B01J23/02;B01J23/10;B01J35/02;B01J37/03;C01G25/00 |
主分类号 |
B01J23/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|