Exhaust treatment devices, catalyst, and methods of making...

Details Exhaust treatment devices, catalyst, and methods of making... Exhaust treatment devices, catalyst, and methods of making...

2003-12-29

2008-11-18

Nguyen, Cam N. (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S111000, C502S327000, C502S332000, C502S333000, C502S334000, C502S339000, C502S349000, C502S350000, C502S351000

Reexamination Certificate

active

07452843

ABSTRACT:
In one embodiment, an exhaust treatment device includes: a substrate, a shell disposed around the substrate, and a retention material disposed between the shell and the substrate. The substrate includes a catalyst that includes a precious metal and a solid solution comprising solid solution metals, wherein the solid solution metals include yttrium, zirconium, and titanium.

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