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The exhaust gas purifying catalyst and method of manufacturing the same 发明授权

2023-09-20 1780 79K 0

专利信息

申请日期 2025-07-10 申请号 JP2008523623
公开(公告)号 JP5196656B2 公开(公告)日 2013-05-15
公开国别 JP 申请人省市代码 全国
申请人 Kyatara Corporation104607
简介 An exhaust gas-purifying catalyst whose activity is less prone to be decreased even in the case where used in a high-temperature atmosphere containing oxygen at a high concentration can be realized. The catalytic layer of the catalyst includes an oxide particle, a simple oxide of alkaline-earth element or rare-earth element, and alumina and/or aluminum hydroxide. The oxide particle contains an oxide of rare-earth element and/or zirconium, a composite oxide and a precious metal. The composite oxide contains an alkaline-earth element and at least one of the rare-earth element and zirconium. The composite oxide and a part of the precious metal form a solid solution.


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