abstract |
A composite including: a nickel compound represented by Formula 1: n Ni 1-x M1 x O y Formula 1n n wherein M1 is silicon (Si), germanium (Ge), molybdenum (Mo), or a combination thereof, and 0≦x≦0.3 and 0≦y≦3; and a yttria-stabilized zirconia including cerium (Ce), titanium (Ti), or a combination thereof. |