Patent ID: 7985709
Filing Date: 2011-07-26
Classification: B01D,B01J,Y02A,Y02T

Abstract:
1. A method for preparing a stabilized oxidation and reduction catalyst comprising the steps of: preparing a mixed-metal oxide precursor solution, the mixed-metal oxide precursor solution comprising a solution of tin ethylhexanoate (SnEH), cerium (II) ethylhexanoate (CeEH) and zirconium (II) ethylhexanoate (ZrEH); applying the mixed-metal oxide precursor solution to a substrate, wherein the substrate does not include an aluminum compound; treating the precursor solution to convert the mixed-metal oxide precursor solution to a mixed-metal oxide active layer, the step of treating the precursor solution to convert the mixed-metal oxide precursor solution to a mixed-metal oxide active layer further comprising the step of oxidizing absorbed and adsorbed SnEH, CeEH and ZrEH to a tin oxide (SnO dispersing a noble metal selected from the group consisting of platinum, palladium. gold, silver, and rhodium, on the surface of the mixed-metal oxide active layer.