EXHAUST GAS PURIFYING CATALYST

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Disclosed is an exhaust gas purifying catalyst exhibiting high purification performance in the Hot range. Specifically disclosed is an exhaust gas purifying catalyst having a catalyst base and a catalyst coating layer formed on the catalyst base. The catalyst coating layer has a layered structure including an inner layer a containing the component (a-1) and the component (a-2) described below, and an outer layer b containing the component (b-1) and the component (b-2) described below. Component (a-1) and component (b-1) : noble metals. Component (a-2) : a complex oxide of (i) Ce, (ii) Zr and (iii) an element selected from the group consisting of rare earth elements, alkaline earth elements and Y, having a ratio of (ii) to (i) within the range of more than 40/100 but not more than 100/2 in terms of the weight ratio between CeO2 and ZrO2. Component (b-2) : a complex oxide of elements including at least (v) and (vi) selected among (iv) Ce, (v) Zr and (vi) an element selected from the group consisting of rare earth elements, alkaline earth elements and Y, having a ratio of (v) to (iv) of not more than 40/100 in terms of the weight ratio between CeO2 and ZrO2.