| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a three-way catalyst that is excellent in low temperature performance, is of high sulfur poisoning resistance, and is excellent in methane removing performance even on a return side. <P>SOLUTION: The three-way catalyst that is made by supporting iridium on an inorganic oxide primarily composed of monocyclic zirconium oxide, and can utilize methane in a methane-containing gas as a reducing power in theoretical air fuel ratio. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
