CATALYST FOR CLARIFYING EXHAUST GAS

摘要

PROBLEM TO BE SOLVED: To provide a new mesoporous catalyst and a monolithic catalyst coated with this catalyst efficiently clarifying exhaust NOx from a diesel engine conventionally difficult to clean.

SOLUTION: This exhaust gas clarifying catalyst is obtained by carrying 0.1-20 mass% platinum-containing catalyst with an average particle size of 1-10 nm, on lanthanide group metal silicate having average fine holes of 1-50 nm and a specific area of 100-1,400 m2/g.

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