Mit Übergangsmetall Integriertes Aluminiumoxid für Verbesserte Dreiwegkatalysatoren

Details

Veröffentlichungs-Nr.

EP4140567

Aktenzeichen

EP22192266

Anmeldetag

26. August 2022

Veröffentlichung

29. März 2023

Rechtsraum

EP

IPC

B01D53/94B01J21/04B01J21/06B01J23/44B01J23/46B01J23/58B01J23/63B01J23/648B01J23/652F01N3/10

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.

Anmelder

Firma

Johnson Matthey Public Limited Company

Land

🇬🇧 Großbritannien

Fachgebiete