| abstract |
(57) [Problem] To provide a catalyst in which a different kind of catalyst metal is supported on a support material, to achieve high dispersion of the catalyst metal, and to improve activity and heat resistance. After a Rh carbonyl cluster is supported on a zeolite, a Pt solution is brought into contact with the zeolite to bind the Pt to the carbonyl group of the cluster. Are formed on the zeolite, and fine particles in which Rh is present at a high concentration on the surface are formed. |