| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of producing a noble metal catalyst in which the cluster size of a noble metal supported on an oxide carrier is controlled, and to provide the catalyst obtained by using the method and having significantly improved cleaning performance to an exhaust gas. <P>SOLUTION: The method of producing the noble metal catalyst comprises introducing a noble metal into the pores of a hollow carbon material, then fixing the carbon material containing the introduced noble metal on an oxide carrier, and firing the fixed carbon material. The preferable carbon material is carbon nanotubes or carbon nanohorns, and the preferable noble metal is at least one selected from platinum, rhodium, palladium, gold and iridium. <P>COPYRIGHT: (C)2003,JPO |
