| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust gas purifying catalyst, an exhaust gas purifying filter, and an exhaust gas purifying device which reduce scattering of atoms or molecules of catalyst metals. <P>SOLUTION: The exhaust gas purifying catalyst 4 is obtained by adding into water cesium sulfate-supported titania 1 supporting an alkali metal compound, as an inorganic oxide, copper oxide-supported titania 2 supporting a copper compound, as an inorganic oxide, and vanadium pentoxide-supported titania 3 supporting a vanadium compound, as an inorganic oxide, and drying and calcinating the mixture. Cesium sulfate has a high combustion activity to PM (particulate matter) to provide a catalyst for efficient oxidation and combustion of the PM, and cesium sulfate, copper oxide, and vanadium pentoxide are immobilized on titania to provide the exhaust gas purifying catalyst inhibiting scattering of the atoms or molecules of catalyst metals. <P>COPYRIGHT: (C)2011,JPO&INPIT |
