公开(公告)号：US20250032983A1

公开(公告)日：2025-01-30

申请号：US18721775

申请日：2022-11-30

Applicant: BASF CORPORATION

Inventor： Jeffrey B. HOKE ,  Shiang SUNG

IPC: B01D53/94 ,  B01J21/04 ,  B01J21/06 ,  B01J21/12 ,  B01J23/656 ,  B01J29/74 ,  B01J35/00 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08

Abstract: Catalytic articles comprising a first washcoat comprising a first refractory metal oxide support, platinum, palladium, and, optionally, a zeolite, and a second washcoat comprising a second refractory metal oxide support, platinum, and manganese. Also disclosed are exhaust gas treatment systems and methods for treating an exhaust gas stream comprising the same.