EXHAUST GAS PURIFYING CATALYST
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United States of America Patent
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Aug 16, 2018
app pub date -
Jul 29, 2016
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Aug 18, 2015
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Abstract
An exhaust gas purifying catalyst provided with a honeycomb structured porous material, a first catalyst consisting of Pd, a coating layer which is formed on a surface of the porous material and a second catalyst consisting of Rh which is loaded onto the coating layer. The porous material contains a catalyst support consisting of a ceria-zirconia solid solution, a composite consisting of alumina and an inorganic binder. A content of the catalyst support in the porous material exceeds 50 parts by mass of a total 100 parts by mass for the catalyst support and the composite. The coating layer is provided with a catalyst support consisting of ceria-zirconia solid solution.
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