| 摘要 |
<P>PROBLEM TO BE SOLVED: To produce a waste gas purification catalyst having an excellent ignition performance of a catalyst noble metal. <P>SOLUTION: This waste gas purification catalyst comprises a catalyst carrier and the catalyst noble metal. Therein, the catalyst noble metal is deposited over the whole length so that the amount of deposition of the catalyst noble metal on the center part of a cross section vertical to the axial direction becomes three times or more of the amount of deposition on the peripheral part other than the center part. The waste gas purification catalyst keeps a high waste gas purification performance and, at the same time, has the excellent ignition performance. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
