Patent ID: 7820585

Claim:
A process for producing a metal cluster-carrying metal oxide support, comprising: (a) adding an ion of a first metal to a dendrimer-containing solution to coordinate the ion of the first metal to said dendrimer; (b) adding a reducing agent to the solution obtained in the step (a) to reduce the ion of the first metal coordinated to the dendrimer, and precipitate a cluster of the first metal in the dendrimer; (c) adding an ion of a second metal to the solution obtained in the step (b) to coordinate the ion of the second metal to the dendrimer holding the cluster of the first metal; and (d) drying and firing the solution obtained in step (c) on a metal oxide support to remove the dendrimer and load a cluster of the first metal and an oxide of the second metal on the metal oxide support, said oxide of the second metal being the same metal oxide as the metal oxide constituting said metal oxide support, or a metal oxide capable of forming a composite oxide with the metal oxide constituting said metal oxide support.