TWC CATALYSTS FOR GASOLINE EXHAUST GAS APPLICATIONS WITH IMPROVED THERMAL DURABILITY

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; and a catalytic region on the substrate; wherein the catalytic region comprises a first platinum group metal (PGM) comp...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	CAMM, Kenneth, HALES, Michael, CHEN, Hai-Ying, KOO, Kwangmo, CHANG, Hsiao-Lan
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	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; and a catalytic region on the substrate; wherein the catalytic region comprises a first platinum group metal (PGM) component, an oxygen storage component (OSC) material, a rare earth metal oxide, and an inorganic oxide; and wherein the rare earth metal oxide has an average diameter (d50) of more than 100 nm.