| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide (1) an electrode material which has excellent long-term storage stability by increasing electrode reaction fields while highly dispersively disposing a metallic catalyst in the fuel electrode material of an SOFC, and simultaneously by suppressing aggregation of the metallic catalyst, and to provide (2) the electrode material which has highly active and excellent long-term storage stability under the condition of using hydrocarbon fuel to improve performance of a practically assumed SOFC in which hydrocarbon fuel is used as fuel gas. <P>SOLUTION: Into the skeletal structure of the fuel cell in which a mixture of metal oxide having oxygen ion conductivity with a metal or its oxide particles having electron conductivity is formed as a madreporic body, oxide having composition expressed by a general formula: ((Ni<SB>1-v-w</SB>Co<SB>v</SB>Fe<SB>w</SB>)<SB>1-y</SB>M<SP>α</SP><SB>y</SB>)<SB>2-x</SB>(Ti<SB>1-z</SB>Nb<SB>z</SB>)<SB>x</SB>O<SB>3</SB>is added to deposit Ni, Co and Fe by reduction, and one element, two elements or three elements selected from them are dispersed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
