| 摘要 |
PROBLEM TO BE SOLVED: To provide a catalyst for purifying exhaust gas, which has excellent heat resistance and catalytic activity even at a low temp. region and enables to rapidly demonstrate catalytic activity after starting an engine. SOLUTION: In a catalyst for purifying exhaust gas, which is composed of a catalyst carrier, a carrying layer formed on this catalyst carrier and a noble metal catalyst carried on the carrying layer, this carrying layer is composed of a zirconium oxide or an activated alumina powder carrying zirconium and cerium, wherein zirconium oxide of at least 75% in total amount of zirconium oxide and cerium oxide is carried on the carrier, and rhodium is specified as the noble metal catalyst. |
