Exhaust gas purification catalyst for internal combustion engine

An exhaust gas purification catalyst for an internal combustion engine, the exhaust gas purification catalyst being arranged in an exhaust passage of the engine to purify an exhaust gas emitted from the engine, wherein

• a catalytic layer comprises a heap of particles each obtained by applying a thin film of an oxygen storage material containing ceria to a surface of a base made of a material having a high-specific surface area, and allowing a precious metal to be supported on a surface of the thin film of the oxygen storage material.