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Exhaust gas purification catalyst
US8932982B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8932982-B2 |
| Application number | US-201113115890-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 25, 2011 |
| Priority date | Jun 7, 2010 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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An exhaust gas purification catalyst includes a catalytic layer containing a particle component A-1 and a particle component A-2 with different catalytic metal contents, each of which is composed of catalytic-metal-doped CeZr-based mixed oxide powder. The particle component A-1 having the lower catalytic metal content is supported on a particle component B composed of Zr-based-oxide-supported alumina powder, and the particle component A-2 having the higher catalytic metal content is supported on a particle component C composed of CeZr-based mixed oxide powder in which catalytic metal is not solid-dissolved.
First claim
Opening claim text (preview).
What is claimed is: 1. An exhaust gas purification catalyst, comprising: a catalytic layer containing a particle component A composed of catalytic-metal-doped CeZr-based mixed oxide powder in which catalytic metal is solid-dissolved in CeZr-based mixed oxide, a particle component B composed of Zr-based-oxide-supported alumina powder in which Zr-based oxide is supported on activated alumina particles, and a particle component C composed of CeZr-based mixed oxide powder in which cat…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US8932982B2 cover?
- An exhaust gas purification catalyst includes a catalytic layer containing a particle component A-1 and a particle component A-2 with different catalytic metal contents, each of which is composed of catalytic-metal-doped CeZr-based mixed oxide powder. The particle component A-1 having the lower catalytic metal content is supported on a particle component B composed of Zr-based-oxide-supported a…
- Who is the assignee on this patent?
- Akamine Masaaki, Shigetsu Masahiko, Ochi Yasuhiro, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B01J35/0006. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).