| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a Pd-Fe alloy nanoparticle having a polyhedral shape, particularly, a tetrahedral shape, a tetradodecahedral shape or the like, and exhibiting higher catalytic activity compared to the conventional Pd simple substance nanoparticle not only in the initial state but also in a state after duration; and to provide a method for producing the Pd-Fe alloy nanoparticle. <P>SOLUTION: The Pd-Fe alloy nanoparticle is composed of Pd and Fe, has a particle diameter of ≤15 nm and a particle diameter distribution satisfying σ<1.2, and has a shape of a cubic body and/or a regular tetrahedron. In the method for producing the Pd-Fe alloy nanoparticle, a mixed solution containing a palladium salt, an iron salt and sodium borohydride as a reducing agent is heated to 120 to 200°C. <P>COPYRIGHT: (C)2012,JPO&INPIT |
