Invention Grant
- Patent Title: Transition metal incorporated alumina for improved three way catalysts
-
Application No.: US17822549Application Date: 2022-08-26
-
Publication No.: US11986802B2Publication Date: 2024-05-21
- Inventor: Shuhei Nagaoka , Xiaorui Zhang
- Applicant: Johnson Matthey Public Limited Company
- Applicant Address: GB London
- Assignee: Johnson Matthey Public Limited Company
- Current Assignee: Johnson Matthey Public Limited Company
- Current Assignee Address: GB London
- Main IPC: B01J21/04
- IPC: B01J21/04 ; B01D53/94 ; B01J21/06 ; B01J23/02 ; B01J23/10 ; B01J23/42 ; B01J23/44 ; B01J23/46 ; B01J23/56 ; B01J23/58 ; B01J23/63 ; B01J35/00 ; B01J35/04 ; F01N3/10

Abstract:
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; and a first catalytic region on the substrate; wherein the first catalytic region comprises a first PGM component and a first alumina, wherein the first alumina is doped with a first dopant of at least 5 wt. %, and wherein the first dopant is selected from the group consisting of Zr, Ta, Mo, W, Ti, Nb, and a combination thereof.
Public/Granted literature
- US20230070291A1 TRANSITION METAL INCORPORATED ALUMINA FOR IMPROVED THREE WAY CATALYSTS Public/Granted day:2023-03-09
Information query