Patent ID: 9517449
Filing Date: 2016-12-13
CPC Classification: B01D,B01J

Claim Text:
1. A method for manufacturing a catalyst system, the method comprising: providing at least one substrate; depositing a washcoat onto the substrate; adjusting a pH of at least one chemical slurry suitable for deposition on the substrate and comprising at least one ZPGM catalyst, wherein the chemical slurry comprises alumina or doped alumina, or a mixture thereof, an oxygen storage material, copper oxide, and cerium oxide; and depositing the at least one chemical slurry overlying the washcoat, wherein the average particle size of the at least one chemical slurry is about 7 μm, and the pH is about 6.8 and wherein loading of the copper oxide is from 10 g/L to 15 g/L and the loading of the cerium oxide is from 12 g/L to 18 g/L.