发明授权
- 专利标题： Catalyst for purification of exhaust gases
- 专利标题（中）： 催化剂用于净化排气
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申请号： US548707申请日： 1990-07-06
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公开(公告)号： US5075275A公开(公告)日： 1991-12-24
- 发明人: Hiroshi Murakami , Kazuko Yamagata , Kazunori Ihara
- 申请人： Hiroshi Murakami , Kazuko Yamagata , Kazunori Ihara
- 申请人地址： JPX Hiroshima
- 专利权人： Mazda Motor Corporation
- 当前专利权人： Mazda Motor Corporation
- 当前专利权人地址： JPX Hiroshima
- 优先权： JPX1-174819 19890706; JPX2-76731 19900328
- 主分类号： B01D53/86
- IPC分类号： B01D53/86 ; B01D53/94 ; B01J23/58 ; B01J23/63
摘要：
A catalyst is comprised of a catalyst carrier and a coat layer containing cerium particles, active alumina particles and a catalyst component of a noble metal; and barium barium oxide is immobilized on the cerium oxide particles. The catalyst can suppress the growth of crystals of cerium oxide due to the immobilization of the barium oxide thereon, thereby improving heat resistance of the catalyst.
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