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US 2017/0248049 A1Published application
Exhaust gas purification catalyst, exhaust gas purification device and filter, and production method for said catalyst
AssigneeOtsuka Chemical Co., Ltd.
InventorsMasatoshi Uetani, Takahiro Mishima
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Abstract
Provided is an exhaust gas purification catalyst having high catalytic activity enabling combustion of PM (particulate matter) at low temperatures and excellent thermal resistance, an exhaust gas purification device and filter having high combustion efficiency of PM and excellent durability, and a method for producing the catalyst. The exhaust gas purification catalyst of the present invention is composite oxide particles containing at least one alkali metal, Si, and Zr.
Claims7
A method of exhaust gas purification comprising the steps of:
- preparing an exhaust gas purification catalyst consisting of composite oxide particles containing at least one alkali metal, Si, and Zr;
- and
- combusting particulate matter contained in exhaust gases using the exhaust gas purification catalyst.
Dependencies are inferred from the claim text.