| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel electrode having an electrode structure in which a large quantity of three-phase interface is present and a metal is hardly sintered and high electrode catalytic activity can be obtained even in the case a small amount of the metal is used, and provide a method to produce such a fuel electrode. SOLUTION: In a fuel electrode of a solid electrolytic fuel cell constituted of an oxide 3 having oxygen ion conductivity and a metal 4 having an electrode activity, the metal 4 is made to be adsorbed on the surface of the oxide 3. Consequently, the three-phase interface where the metal 4, the oxide 3, and a fuel gas are brought into contact is extremely increased and an electrode with low voltage decrease following an electrode reaction and having excellent output performance can be obtained. Moreover, since fine particles of the metals are strongly restricted by the oxide powder, sintering of the fine particles of the metal hardly occurs and as a result, an electrode having stability for a long time and scarcely deteriorated with the lapse of time can be obtained. |
