Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 12, 2021
Patent Application Number
20200501
Date Filed
May 1, 2020
Patent abstract
A three-way catalyst article is provided for the treatment of exhaust gas from a positive ignition engine, the catalyst article comprising:a substrate having a first layer provided thereon, wherein a second layer is provided on the first layer,wherein the first layer comprises a first metal and a first alumina, andwherein the second layer comprises a second metal and a second alumina,wherein either (i) the first metal is Pd and the second metal is Rh; or (ii) the first metal is Rh and the second metal is Pd; andwherein at least one of the first and second aluminas comprises theta alumina.
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