| 摘要 |
To provide an excellent exhaust gas purification catalyst with satisfactory NOx selective reductive purification performance at lower temperature, and having a satisfactory N2O formation rate. A selective reduction catalyst for exhaust gas purification, represented by the formula: CoxMn(1−x)TiO3 (where x in the molar ratio is a value greater than 0 and 0.2 or less). |
