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Design of Oxide Catalysts for Exhaust Emission Control
Published May 21, 2008 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Meeting
Conventional catalyst materials contain precious metals such as platinum, rhodium and palladium in order to meet new emission regulations. As regulations for exhaust emissions become increasingly strict, the amount of precious metal has increased in catalyst materials.
In this work, various multi-component oxides were prepared to ascertain whether they would pass emission regulations. A new concept for the oxide catalyst was found to reduce the amount of precious metals used. The oxide catalyst designed with the new concept has excellent properties of high catalytic activity. The aged oxide catalyst also shows high catalytic activity as well as the fresh catalyst.