Exhaust gas purification catalyst and exhaust gas purification method using the same

An exhaust gas purification catalyst comprising:

• a region containing palladium, the region being provided on a three-dimensional structure;
• and
• a first region and a second region being provided on the region containing palladium in order from an inflow side of exhaust gas to an outflow side of exhaust gas;
• wherein
• the first region and the second region comprise rhodium;
• the concentration of rhodium contained in the first region is from 2 to 5 times the concentration of rhodium contained in the second region;
• and
• the second region further comprises cerium, and the amount of cerium is not less than 0.5 g/L in terms of CeO2 relative to 1 liter of the three-dimensional structure.