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US 2015/0306571 A1Published application
Catalyst for abating a nitrogen oxide, method for preparing the same, and catalyst system for abating a nitrogen oxide
AssigneeHyundai Motor Company
InventorChang-Ho Jung
Life of this patent
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Abstract
A catalyst for abating a nitrogen oxide includes: a honeycomb substrate including a plurality of cell passages partitioned by a cell barrier rib; and a coating layer positioned on the internal side of the cell passages. The coating layer includes a support including Mg-substituted alumina (MgAl2O4), ceria (Ce), and a composite ceria; and Ba and a noble metal catalyst selected from the group consisting of Pt, Pd, Rh and combinations thereof, which are supported on the support. Also provided is a catalyst system for abating a nitrogen oxide includes the coating layer.
Claims17
A catalyst for abating a nitrogen oxide, comprising:
- a honeycomb substrate comprising a plurality of cell passages partitioned with a cell barrier rib;
- and
- a coating layer positioned on the internal side of the cell passages,
- wherein the coating layer comprises,
- a support comprising Mg-substituted alumina (MgAl2O4), ceria (Ce) and a composite ceria;
- and Ba and a noble metal catalyst selected from the group consisting of Pt, Pd, Rh and combinations thereof supported on the support.
3 more elements
Dependencies are inferred from the claim text.