| abstract |
The present invention provides a novel catalyst that exhibits catalytic activity at a lower temperature, exhibits good durability, and can be produced at low cost. An exhaust gas purifying catalyst containing a composite oxide represented by the following general formula (1) is provided. A m B n O x (1) [In the formula (1), A represents at least one element selected from Bi, Ca and Sr; B represents at least one element selected from Ru, Fe and Cu; O represents oxygen, and m, n and x Each represents a positive number. ] [Selection figure] None |