EXHAUST PURIFICATION CATALYST

摘要

PROBLEM TO BE SOLVED: To provide an exhaust purification catalyst that exhibits high CO oxidation activity in a temperature range including a low temperature range of <100°C.

SOLUTION: A catalyst layer of the exhaust purification catalyst includes: a noble metal coat layer 3 that carries a noble metal on a carrier base material 21 as a lower layer; and a HC (hydrocarbon) adsorbent layer 4 that carries a noble metal on a carrier base material 31 as an upper layer. The thickness of the HC adsorbent layer of the upper layer is 30-80 μm.

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