| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive electrode catalyst material which has high catalytic activity, and can remarkably reduce the amount of platinum to be used that has heretofore been utilized as the electrode catalyst material of a solid high polymer electrolyte type fuel cell, or can be used instead of platinum. <P>SOLUTION: The inventions refer to: (1) a method of producing metal-containing active carbon where a metal-containing organic natural product is heat-treated in an atmosphere in which the amount of oxygen is limited; (2) a method where, in the above production method, after the heat treatment, fluorine-containing organic acid and/or the salt thereof is further adhered to the active carbon; (3) an oxygen reduction electrode and a humidity conditioning material obtained by using the production methods (1) and (2); and (4) an oxygen reduction electrode of a solid high polymer electrolyte type fuel cell provided with an electrode catalytic layer comprising the active carbon produced by the production methods (1) and (2), and a solid high polymer type fuel cell provided with the same. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
