| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve the heat resistance and cleaning performance of a catalyst for cleaning exhaust gas. <P>SOLUTION: The catalyst for cleaning exhaust contains, in a catalytic layer formed on a catalyst carrier, Al<SB>2</SB>O<SB>3</SB>and a compound oxide which contains Ce and Zr and in which Rh is arranged between the crystal lattices or atoms of a primary particle, wherein the compound oxide having any shape of a hollow shell and its fragment is contained in the catalyst layer. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
