| 摘要 |
PURPOSE:To provide an SOFC stable for a long period of time by binding Ni strongly with the surfaces of stabilized zirconia YSZ powder of electrode constituent member, and giving the electrode the same coefficient of thermal expansion as the electrolyte. CONSTITUTION:YSZ 12 is fully immersed in a nickel chloride aqueous solution 11 where Ni and YSZ are related in the specified proportion by weight, and the resultant is dried as specified, subjected to a 600 deg.C processing, an attached to thin holes provided in the YSZ layer. The YSZ powder obtained is subjected to press shaping and sintered at 1200-1350 deg.C. When the fuel electrode obtained is exposed to a power generating atmosphere (1000 deg.C, full atmospheric gas), the Ni attached is reduced into metal state, and it can be used as electrode as it is. Porous material contains zirconia chiefly, to which yttoria is added as a stabilizer or used as a base. The metal acting as the electrode belongs to the VIII group of elements. |
