| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catalytic structural body which has high waste gas purifying performance without occurring a problem such as enlargement of pressure loss and increase of heat capacity. <P>SOLUTION: This inorganic fiber comprises a compound oxide which contains at least one kind of Pt, Pd and Rh and, preferably, the compound oxide has a chemical formula of Y<SB>4</SB>MO<SB>6</SB>, Y'<SB>4-n</SB>Y"<SB>n</SB>MO<SB>6</SB>or AB<SB>1-x</SB>M<SB>x</SB>O<SB>3</SB>, therein, M is one or more kinds of elements selected from Pt, Pd and Rh. From such as inorganic fiber, the catalytic structural body of nonwoven fabric type, catalytic structural body formed by weaving and catalytic structural body of honeycomb type are provided and, further, an automobile engine in which the inorganic fiber is disposed on the inner surface of the exhaust side port and an exhaust system component for automobile in which the inorganic fiber is disposed on the inner surface of the exhaust pipe are provided. <P>COPYRIGHT: (C)2003,JPO |
