| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an oxygen absorption/emission material having an oxygen absorption/emission performance and S poisoning durability, and to provide a catalyst for cleaning exhaust gas containing the same. <P>SOLUTION: The oxygen absorption/emission material is obtained by mixing Ln<SB>2</SB>O<SB>2</SB>SO<SB>4</SB>(Ln is a rare earth element) and a ceria composite oxide. The catalyst for cleaning exhaust gas contains the oxygen absorption/emission material. <P>COPYRIGHT: (C)2011,JPO&INPIT |
