| 摘要 |
An exhaust gas purifying catalyst includes: a carrier made of alumina, yttria, and iron oxide; and a noble metal supported on the carrier, wherein an amount of the yttria contained in the carrier is 0.3 mass% to 31 mass%, an amount of the iron oxide contamed in the carrier is 0.5 mass% to 27 mass%, and an atomic ratio of yttrium in the yttria to iron in the iron oxide in the carrier is in a range of 80:20 to 10:90. |
