EXHAUST GAS PURIFICATION CATALYST DEVICE

An exhaust gas purification catalyst device comprising a base material and a catalyst coating layer provided on the base material, wherein the catalyst coating layer contains zeolite particles, inorganic oxide particles other than the zeolite particles, and a catalyst precious metal, and the ratio d...

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Bibliographische Detailangaben
Hauptverfasser:	TAKASAKI, Kohei, OHASHI, Tatsuya, OISHI, Shunsuke
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	An exhaust gas purification catalyst device comprising a base material and a catalyst coating layer provided on the base material, wherein the catalyst coating layer contains zeolite particles, inorganic oxide particles other than the zeolite particles, and a catalyst precious metal, and the ratio dZEO/dOX between the average particle diameter dZEO of the zeolite particles and the average particle diameter dOX of the inorganic oxide particles other than the zeolite particles is 3.4 or less.