Palladium Und/oder Platin Enthaltende Katalysatoren mit Metall-Promoter für die Abgasbehandlung von Benzinmotoren

Details

Veröffentlichungs-Nr.

EP4744760

Anmeldetag

20. September 2024

Veröffentlichung

20. Mai 2026

Rechtsraum

EP

Abstract

A catalytic article for treating exhaust gas from gasoline engines 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 and a first metal component, wherein the first PGM component is platinum or palladium; wherein the first metal component is Fe; wherein when the first PGM component is platinum, the molar ratio between the first metal component and the first PGM component in the first catalytic region is from 35:1 to 8:1; wherein when the first PGM component is palladium, the molar ratio between the first metal component and the first PGM component in the first catalytic region is from 10:1 to 1:5; and wherein the first catalytic region further comprises a first oxygen storage capacity (OSC) material and a first inorganic oxide. The invention also relates to a catalytic article comprising a first catalytic region comprising Fe and Pd, wherein the molar ratio of Fe to Pd is 120:1 to 1:5. The invention also relates to a catalytic article comprising a first catalytic region comprising no more than 2wt.% of Zn based on element.

Anmelder

Firma

Johnson Matthey Public Limited Company

Land

🇬🇧 Großbritannien