To provide a highly active catalyst.
A plurality of clusters produced in a cluster production chamber 10 are selected by a mass filter 14 every sizes and are introduced to a deposit chamber 16. The cluster of a predetermined size is deposited on the base in this deposit chamber 16. In the mass filter 14, a specific area of a metal constituting the cluster is made larger by selecting a relatively small cluster and the catalyst having high activity can be obtained by selecting the cluster of a predetermined total atomic number. Thus, an electrode catalyst for a fuel battery having high activity can be obtained. A platinum catalyst is preferable as a catalyst for generating hydrogen from hydrocarbon for the fuel battery.
COPYRIGHT: (C)2003,JPO
Tetsuo Nagami
Yasushi Kondo
Yasumatsu Hisato
Hayakawa Tetsuichiro
Genesis Research Institute, Inc.
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Jun Ishida