Inventors:
Yisun Cheng - Ann Arbor MI, US
Yinyan Huang - Northville MI, US
Christine Kay Lambert - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B01D 53/94
B01J 33/00
B01J 37/00
F01N 3/10
US Classification:
4232132, 60299, 60301, 50252712
Abstract:
According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum oxide, aluminum oxide, silicon dioxide, sulfur oxide, niobium oxide, molybdenum oxide, yttrium oxide, nickel oxide, cobalt oxide, and combinations thereof.