公开(公告)号：US20230249157A1

公开(公告)日：2023-08-10

申请号：US18165963

申请日：2023-02-08

申请人： Johnson Matthey Public Limited Company

发明人： Dongxia LIU ,  Michael Howard ,  Kevin Kistler

IPC分类号： B01J21/04 ,  B01J21/06 ,  B01J23/63 ,  B01D53/94

CPC分类号： B01J21/04 ,  B01J21/066 ,  B01J23/63 ,  B01D53/9418 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/828 ,  B01J2523/822 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2257/40 ,  B01D2258/01

摘要： A three-way catalyst article, and its use in an exhaust system for internal combustion engines, is disclosed. The catalyst article for treating exhaust gas comprising: a substrate comprising an inlet end and an outlet end with an axial length L; a first catalytic region comprising a first platinum group metal (PGM) component supported on a first PGM support material, wherein the first PGM component comprises platinum and rhodium; and wherein the first PGM support material comprises ZrO2—Al2O3.