发明名称 |
Nitrogen oxide storage catalytic converter for use in a motor vehicle in a close-coupled position |
摘要 |
A nitrogen oxide storage catalyst is provided, which has two catalytically active coatings on a support body. The lower coating applied directly to the support body has a nitrogen oxide storage function and includes platinum as a catalytically active component applied to a homogeneous magnesium-aluminum mixed oxide in combination with a nitrogen oxide storage material, in which a nitrogen oxide storage component is likewise present and applied to a homogeneous magnesium-aluminum mixed oxide. The second layer is notable for three-way catalytic activity, and includes palladium applied to aluminum oxide and barium oxide or strontium oxide, but no platinum.
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申请公布号 |
US8454917(B2) |
申请公布日期 |
2013.06.04 |
申请号 |
US201013144238 |
申请日期 |
2010.01.27 |
申请人 |
HOYER RUEDIGER;ECKHOFF STEPHAN;PAULY THOMAS R.;UMICORE AG & CO. KG |
发明人 |
HOYER RUEDIGER;ECKHOFF STEPHAN;PAULY THOMAS R. |
分类号 |
B01D53/94;B01J23/44;B01J32/00;F01N3/10;F01N3/28 |
主分类号 |
B01D53/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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