| 摘要 |
<P>PROBLEM TO BE SOLVED: To widen a temperature range for a silver-containing exhaust gas treatment catalyst to exhibit excellent NO<SB>x</SB>cleaning capability and at the same time provide a technique advantageous for making it hard to cause poisoning with sulfur. <P>SOLUTION: The exhaust gas treatment catalyst 1 includes a substrate 2 and a catalyst layer 3 supported by the substrate 2 and containing a silver-carrying zeolite, a silver-carrying alumina, and titania. <P>COPYRIGHT: (C)2009,JPO&INPIT |
