阅读说明：本技术 三元催化剂 (Three-way catalyst ) 是由 R·J·安德森 J·G·努南 C·M·艾丽斯 G·S·桑 于 2019-09-05 设计创作，主要内容包括：本发明涉及一种催化剂,该催化剂包括在基材端部a和b之间延伸的长度(L)的载体基材以及三个洗涂层区A、B和C,其中洗涂层区A包含一种或多种第一铂族金属并且从基材端部a开始在长度(L)的一部分上延伸,洗涂层区C包含一种或多种第一铂族金属并且从基材端部b开始在长度(L)的一部分上延伸,并且洗涂层区B包含与洗涂层区A相同的组分以及另外的一种或多种第二铂族金属并且在洗涂层区A和C之间延伸,其中L＝L-A+L-B+L-C,其中L-A是洗涂层区A的长度,L-B是基材长度B的长度,并且L-C是基材长度C的长度。(The invention relates to a catalyst comprising a support substrate of length (L) extending between substrate ends a and B and three washcoat zones A, B and C, wherein washcoat zone a comprises one or more first platinum group metals and extends over a portion of length (L) from substrate end a, washcoat zone C comprises one or more first platinum group metals and extends over a portion of length (L) from substrate end B, and washcoat zone B comprises the same components as washcoat zone a and one more additional washcoat zonesOne or more second platinum group metals and extending between washcoat regions a and C, wherein L ═ L A +L B +L C Wherein L is A Is the length of the washcoat zone A, L B Is the length of the substrate length B, and L C Is the length of the substrate length C.)