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. 22, 2022
Filed:
Mar. 13, 2020
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Krishna Gunugunuri, Canton, MI (US);
Charles Alexander Roberts, Farmington Hills, MI (US);
Torin C. Peck, Ann Arbor, MI (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Abstract
An improved catalyst system is provided for the direct decomposition removal of NOfrom an exhaust gas stream at temperatures between about 350° C. and about 600° C. that employs an (amorphous CuO)/CoOcatalyst. The catalyst has an amorphous CuOdeposit on the surfaces of particles of CoOspinel oxide. The catalyst is configured to reduce NOto Nwithout the presence of a reductant. The (amorphous CuO)/CoOcatalyst is formed by the precipitation of the deposit from solution onto a suspension of CoOspinel oxide particles. The catalyst system can be employed in a catalytic converter for the direct decomposition removal of NOfrom an exhaust gas stream flowing at a temperature of less than or equal to about 500° C.