LAYERED CATALYSTS COMPOSITION AND CATALYTIC ARTICLE AND METHODS OF MANUFACTURING AND USING THE SAME

    公开(公告)号:US20220001370A1

    公开(公告)日:2022-01-06

    申请号:US17309746

    申请日:2019-12-16

    Abstract: The presently claimed invention provides a layered catalytic article comprising a first layer comprising a nickel component and a ceria component, wherein the amount of the nickel component is 1.0 to 50 wt. %, calculated as nickel oxide, based on the total weight of the first layer, and wherein the first layer is essentially free of copper; a second layer comprising a platinum group metal component, an oxygen storage component, and an alumina component, wherein the platinum group metal component comprises platinum, rhodium, palladium, or any combination thereof, and wherein the amount of the platinum group metal component is 0.0 to 5 wt. %. based on the total weight of the second layer; and a substrate. The presently claimed invention also provides a process for preparing the layered catalytic article. It further provides an exhaust system for internal combustion engines comprising a layered catalytic article.

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