abstract |
A catalytic converter for cleaning exhaust gas includesna heat-resistant support, and a coating formed on the support.nThe coating includes at least one kind of catalytically activensubstance and a zirconium oxide. The zirconium oxide has anpre-aging specific surface area I and a post-aging specificnsurface area A, wherein the aging is performed in an atmospherenof 1,000 °C for 5 hours, and wherein A/I≧0.4 and I≧40m 2 /g. |