Exhaust gas purifying catalyst and method of producing the same
摘要
<p>Disclosed is an exhaust gas purifying catalyst exhibiting excellent purification performance for a long period of time by suppressing coagulation of a noble metal. A catalyst powder comprises a noble metal and first and second compounds. In the catalyst powder, the first compound carries the noble metal and is separated from another first compound carrying a noble metal by the second compound. At least one catalyst layer comprising the catalyst powder is formed on an inner surface of a substrate. The catalyst layer has fine pores. A fine pore volume of fine pores having a fine pore diameter of greater than 0.1 µm to less than or equal to 1 µm is 10% to 60% of the fine pore volume of fine pores having a fine pore diameter of 0.1 µm or less.</p>
申请公布号
EP1980318(A2)
申请公布日期
2008.10.15
申请号
EP20080154348
申请日期
2008.04.10
申请人
NISSAN MOTOR CO., LTD.;RENAULT S.A.S.
发明人
KIKUCHI, HIROTO;SUGA, KATSUO;NAKAMURA, MASANORI;WAKAMATSU, HIRONORI;SHIRATORI, KAZUYUKI;MIYAMURA, TOSHIBARU;IKEZAWA, JUN