|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||B01J-027/25 B01J-023/00 B01J-023/02 B01J-023/10 B01J-023/40 B01J-023/42 B01J-023/44 B01J-023/56 B01J-023/58 B01J-023/70 B01J-023/74 B01J-021/04 B01D-053/94 B01J-023/89 B01J-035/04 B01J-023/20 B01J-023/63 B01J-027/232 B01J-035/00|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 60|
The present disclosure describes rhodium iron catalysts of use in catalyst systems. Disclosed here are TWCs configured to include a substrate and one or more of a washcoat layer, an impregnation layer, and/or an overcoat layer. Disclosed herein are one or more of a washcoat layer and/or an overcoat layer formed using a slurry that includes one or more of an oxygen storage material, a refractory support oxide, iron, and rhodium. Disclosed herein are methods of preparing catalysts wherein a washcoat layer is deposited onto the substrate, one or more impreg...
1. A catalyst system, comprising: a substrate;a washcoat deposited on the substrate;at least one impregnation layer; andan overcoat;wherein the washcoat comprises at least one of the group consisting of about 10 wt % to about 75 wt % cerium oxide, about 25 wt % to about 90 wt % zirconium-hafnium oxide, about 0 wt % to about 15 wt % lanthanum oxide, about 0 wt % to about 15 wt % neodymium oxide, about 0 wt % to about 15 wt % yttrium oxide, and about 0 wt % to about 15 wt % praseodymium oxide;wherein the at least one impregnation layer comprises one or mor...