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Composite oxide particles and catalyst for purifying exhaust gas using the same 发明授权

2023-02-02 4100 286K 0

专利信息

申请日期 2025-07-09 申请号 JP2013060128
公开(公告)号 JP5900395B2 公开(公告)日 2016-04-06
公开国别 JP 申请人省市代码 全国
申请人 TOYOTA MOTOR CORP
简介 This invention provides complex oxide particles as carriers that are capable of imparting high heat tolerance and oxygen storage capacity to a catalyst and an exhaust gas purifying catalyst for automobiles using the same. The complex oxide particles comprise ceria-zirconia complex oxide, alumina, yttria, and at least one oxide of an element selected from among rare earth elements other than cerium and yttrium and alkaline earth metals, in which alumina content is 70% to 89% by mass relative to the complex oxide particles and yttria content is 0.01% to 0.22% by mole relative to the ceria-zirconia complex oxide.


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