Exhaust gas purifying catalyst

An exhaust gas purifying catalyst comprising:

• a substrate having a through hole penetrating the substrate in an axial direction;
• and
• a catalyst coating layer formed on an internal surface of the through hole, the catalyst coating layer containing:
• a component (i):
• a precious metal;
• and
• a component (ii):
• at least one of a group consisting of a Zr oxide, a Ce oxide and a ZrCe mixed oxide,
• wherein the through hole forms a passage of exhaust gas,
• wherein an oxide equivalent weight of Zr contained in the component (ii) is within a range of 51 to 100 wt % of an oxide equivalent weight of Zr and Ce contained in the component (ii) in the catalyst coating layer formed in an area A located on an upstream portion of the passage with respect to a flow direction of exhaust gas,
• and wherein the component (ii) includes at least one of a group consisting of a Ce oxide and a ZrCe mixed oxide in which an oxide equivalent weight of Ce contained in the ZrCe mixed oxide is within a range of 58 to 100 wt % of an oxide equivalent weight of Zr and Ce contained in the ZrCe mixed oxide in the catalyst coating layer formed in an area B located on a downstream portion of the passage with respect to the flow direction of exhaust gas.