EXHAUST PURIFICATION CATALYST, EXHAUST EMISSIN CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, AND EXHAUST GAS PURIFICATION FILTER
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United States of America Patent
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Issued Date -
Sep 4, 2014
app pub date -
Aug 24, 2012
filing date -
Aug 26, 2011
priority date (Note) -
Abandoned
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Abstract
Provided are an exhaust purification catalyst which purifies an exhaust gas discharged from an internal combustion engine and in which high catalytic activity at a low temperature and high durability at a high temperature are compatible with each other, and an exhaust emission control device for the internal combustion engine in which the exhaust purification catalyst is used. The exhaust purification catalyst is a catalyst in which a noble metal particle is carried on a surface of a silicon carbide particle. The catalyst is a noble-metal-carrying silicon carbide particle (1) in which a noble metal particle (3) is carried on a surface of a silicon carbide particle (2) in a state of being coated with an oxide layer (4).
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