Search International and National Patent Collections
|1. (WO2018199250) EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION METHOD USING SAME|
|Applicants:||UMICORE SHOKUBAI JAPAN CO., LTD.
|Title:||EXHAUST GAS PURIFICATION CATALYST AND EXHAUST GAS PURIFICATION METHOD USING SAME|
In order to provide an exhaust gas purification catalyst that can purify hydrocarbons, carbon monoxide, and nitrogen oxides within exhaust gas at a low temperature, in an exhaust gas purification catalyst according to the present invention, a region (2) including palladium is provided on a three-dimensional structure (1), a first region (3) and a second region (4) are provided on this region (2) in order from a side where exhaust gas flows in toward a side where the exhaust gas flows out, and the concentration of rhodium included in the first region (3) is higher than the concentration of rhodium included in the second region (4).