Invention Application
US20160184801A1 CERIA-ZIRCONIA-BASED COMPOSITE OXIDE AND METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION CATALYST INCLUDING CERIA-ZIRCONIA-BASED COMPOSITE OXIDE
审中-公开
基于CERIA-ZIRCONIA的氧化复合氧化物及其生产方法，以及包括基于CERA-ZIRCONIA的复合氧化物的排气净化催化剂
- Patent Title: CERIA-ZIRCONIA-BASED COMPOSITE OXIDE AND METHOD FOR PRODUCING SAME, AND EXHAUST GAS PURIFICATION CATALYST INCLUDING CERIA-ZIRCONIA-BASED COMPOSITE OXIDE
- Patent Title (中): 基于CERIA-ZIRCONIA的氧化复合氧化物及其生产方法，以及包括基于CERA-ZIRCONIA的复合氧化物的排气净化催化剂
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Application No.: US14910378Application Date: 2014-08-05
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Publication No.: US20160184801A1Publication Date: 2016-06-30
- Inventor: Akira MORIKAWA , Kae KONISHI , Toshitaka TANABE , Akihiko SUDA , Masahide MIURA , Isao CHINZEI , Hiromasa SUZUKI , Akiya CHIBA , Kosuke IIZUKA
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , CATALER CORPORATION
- Applicant Address: JP Toyota-shi, Aichi-ken JP Kakegawa-shi, Shizuoka-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,CATALER CORPORATION
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA,CATALER CORPORATION
- Current Assignee Address: JP Toyota-shi, Aichi-ken JP Kakegawa-shi, Shizuoka-ken
- Priority: JP2013-166336 20130809
- International Application: PCT/IB2014/001462 WO 20140805
- Main IPC: B01J23/10
- IPC: B01J23/10 ; B01J37/12 ; B01J37/16 ; B01J35/02 ; B01J37/00
Abstract:
A ceria-zirconia-based composite oxide containing a composite oxide of ceria and zirconia is provided, in which primary particles having a particle diameter of 1.5 to 4.5 μm account for, on a particle number basis, at least 50% of all primary particles in the ceria-zirconia-based composite oxide, and the molar ratio of cerium to zirconium in the ceria-zirconia-based composite oxide is between 43:57 and 55:45.
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