| 摘要 |
An object of the present invention is to provide an exhaust gas purifying catalyst for selective reduction of NOx, where the NOx adsorption capacity under low temperature, for example, at the time of engine starting, is improved and the selective catalytic reduction (SCR) activity is enhanced, and an exhaust gas purifying method using the catalyst. The exhaust gas purifying catalyst for selective reduction of NOx of the present invention contains a spinel-type composite oxide phase represented by formula MnFe 2 O 4 . |
