| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel electrode for a solid oxide fuel cell capable of efficiently generating electric power even when hydrogen gas containing unreformed residual hydrocarbon gas is used as fuel gas. <P>SOLUTION: In a power generation cell for the solid oxide fuel cell using a lanthanum gallate system oxide ion conductor as a solid electrolyte, forming a porous air electrode on one surface of the solid electrolyte, and forming the fuel electrode on the other surface, the fuel electrode is formed by adhering Ru-carried B-doped ceria (herein after called BDC) particles 3 formed by carrying Ru metal onto BDC on the skeleton surface of a porous mixture sinter 8 having the skeleton structure comprising a network of the BDC particles 4' and nickel oxide particles 4 represented by general formula: Ce<SB>1-m</SB>B<SB>m</SB>O<SB>2</SB>(in the formula, B represents one kind or two kinds or more selected from the group comprising Sm, Gd, Y, and Ca; and m is 0<m≤0.4), and the Ru-carried BDC particles 3 are most densely adhered on the interface between the fuel electrode and the solid electrolyte and on the skeleton surface of the porous mixture sinter in the vicinity of the interface. <P>COPYRIGHT: (C)2007,JPO&INPIT |
