05039647 is referenced by 23 patents and cites 8 patents.

There is provided an improved catalyst for purifying exhaust gases comprising a carrier carrying alumina, zirconium oxide and a noble metal catalyst. The improvement resides in the fact that the carrier carries the alumina as a layer having dispersed therein the zirconium oxide particles, the zirconium oxide particles carrying said noble metal catalyst. The dispersibility of the noble metal catalytic component is thereby improved and the sintering prevention effect on the noble metal catalytic component by the zirconium oxide is effectively exhibited. Thus, the heat-proof property of the catalyst is improved and the cooperation between the noble metal catalytic component and alumina is effectively enhanced, improving longevity of the catalyst.

Title
Catalyst for exhaust gas purification and method for producing the catalyst
Application Number
7/319131
Publication Number
5039647
Application Date
March 6, 1989
Publication Date
August 13, 1991
Inventor
Hiroshi Murakami
Hiroshima
JP
Kazunori Ihara
Iwakuni
JP
Agent
Wenderoth Lind & Ponack
Assignee
Mazda Motor Corporation
JP
IPC
B01J 23/56
B01J 23/10
B01J 21/06
B01J 21/04
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