公开(公告)号：US11788450B2

公开(公告)日：2023-10-17

申请号：US17451352

申请日：2021-10-19

申请人： Johnson Matthey Public Limited Company

发明人： Paul Millington ,  Maria C. Vlachou

IPC分类号： B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J23/00 ,  B01J23/10 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/63 ,  B01J35/00 ,  B01J35/04 ,  B01D53/94 ,  F01N3/10 ,  F01N3/28 ,  B01J37/03

CPC分类号： F01N3/101 ,  B01J23/002 ,  B01J23/10 ,  B01J23/42 ,  B01J23/44 ,  B01J23/464 ,  B01J37/038 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14

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 rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.

公开(公告)号：US20220136417A1

公开(公告)日：2022-05-05

申请号：US17451352

申请日：2021-10-19

申请人： Johnson Matthey Public Limited Company

发明人： Paul Millington ,  Maria C. Vlachou

IPC分类号： F01N3/10 ,  B01J23/46 ,  B01J23/42 ,  B01J23/44 ,  B01J37/03 ,  B01J23/00 ,  B01J23/10

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 rhodium (Rh) and platinum (Pt); and wherein Pt and Rh has a weight ratio of at least 1:10.