| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oxidation catalyst for cleaning exhaust gas, which can exhibit excellent catalytic activity to the contents in exhaust gas from an internal-combustion engine, at the lower temperature. <P>SOLUTION: The oxidation catalyst for cleaning exhaust gas is the one for oxidizing/removing the contents in the exhaust gas from the internal-combustion engine, and includes a complex metal oxide represented by the general formula: Y<SB>1-x</SB>Ag<SB>x</SB>Mn<SB>1-y</SB>Fe<SB>y</SB>O<SB>3</SB>(wherein 0.01≤x≤0.30 and 0.01≤y≤0.50). It is preferable that the complex metal oxide has a hexagonal structure and includes zirconium oxide of 5-20 mass% of the total mass of the complex metal oxide. <P>COPYRIGHT: (C)2011,JPO&INPIT |
