The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2019
Filed:
Jun. 16, 2016
Pacific Industrial Development Corporation, Ann Arbor, MI (US);
Wei Wu, Ann Arbor, MI (US);
Yunkui Li, Ann Arbor, MI (US);
Jeffery Lachapelle, Northville, MI (US);
David Shepard, Ann Arbor, MI (US);
Pacific Industrial Development Corporation, Ann Arbor, MI (US);
Abstract
A catalyst support material (D-CZMLA) with oxygen storage capacity corresponds to the formula vD:x(CeZrO):yM:zL:(1-v-x-y-z)AlO, wherein w is a molar ratio between 0.1-0.8 and v, x, y, and z are weight ratios, such that v is between 0.005-0.15, x is between 0.05-0.80, and y and z are between 0.001-0.10. M is an interactive promoter for oxygen storage, L is a stabilizer (L) for the AlOsupport; and D is an oxidizing dopant. The catalyst support material can be incorporated into a wash coat that combines platinum group metals (PGM), an adhesive, and a mixture of (α)RE-Ce—ZrO+(β)CZMLA+(1−α−β)RE-AlO, wherein RE-Ce—ZrOis a rare earth element stabilized ceria zirconia having a weight ratio (α) between 0-0.7; CZMLA is the doped catalyst support material having a weight ratio (β) between 0.2-1, such that (α+β)≤1; and RE-AlOis rare earth element stabilized alumina having a weight ratio equal to (1−α−β).