| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a catalyst body which is active even at a relative low temperature, has a small usage of a nobel metal, and has effect to reduce a nitrogen compound generated from a diesel engine, etc., when used as a catalyst. <P>SOLUTION: In a pore of an anodic oxide layer of aluminum, the catalyst body supports at least a kind selected from the group consisting of potassium (K), barium (Ba), lanthanum (La), calcium (Ca), lithium (Li), cerium (Ce), zirconium (Zr), praseodymium (Pr), neodymium (Nd), terbium (Te), samarium (Sm) and gadolinium (Gd), and at least a kind selected from the group consisting palladium (Pd), platinum (Pt), rhodium (Rh), ruthenium (Ru), iridium (Ir), silver (Ag) and gallium (Ga). <P>COPYRIGHT: (C)2009,JPO&INPIT |
