CATALYST COMPRISING CERIA-ZIRCONIA-OXYGEN STORAGE MATERIAL AND PROCESS FOR ITS PRODUCTION

CATALYST COMPRISING CERIA-ZIRCONIA-OXYGEN STORAGE MATERIAL AND PROCESS FOR ITS PRODUCTION

An oxygen storage material (OSM) that exhibits enhanced redox properties, developed mesoporosity, and a resistance to sintering. The oxygen storage material (OSM) has a high oxygen storage capacity (i.e., OSC>1.5 mmol H2/g) and enhanced reducibility (i.e., bimodal TPR-H2 profile with two Tmax in...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LACHAPELLE, JEFFERY, BORTUN, ANATOLY, WU, WEI, LI, YUNKUI, CHO, JIN, BORTUN, MILA, SHEPARD, DAVID
Format: Patent
Sprache:eng ; pol
Schlagworte:
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR RELEVANT APPARATUS
TRANSPORTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An oxygen storage material (OSM) that exhibits enhanced redox properties, developed mesoporosity, and a resistance to sintering. The oxygen storage material (OSM) has a high oxygen storage capacity (i.e., OSC>1.5 mmol H2/g) and enhanced reducibility (i.e., bimodal TPR-H2 profile with two Tmax in the temperature range from 150° C. to 550° C.). The OSM is suitable for use as a catalyst and a catalyst support. The method of making the oxygen storage material comprises the preparation of a solution containing zirconium, cerium, rare earth and transition metal salts, followed by the co-precipitation of all constituent metal hydroxides with a base.