| 摘要 |
A mixed ionic conductor with an ion conductive oxide has a perovskite structure, e.g. of the formula Baa(Ce1-bM<1>b)LcO3- alpha , wherein M<1> is at least one trivalent rare earth element other than Ce; L is at least one element selected from the group consisting of Zr, Ti, V, Nb, Cr, Mo, W, Fe, Co, Ni, Cu, Ag, Au, Pd, Pt, Bi, Sb, Sn, Pb and Ga; with <DFG> <DF>0.9 ≤ a ≤ 1; </DF> <DF>0.16 ≤ b ≤ 0.26; </DF> <DF>0.01 ≤ c ≤ 0.1; </DF></DFG> and <DF>(2+b-2a)/2 ≤ alpha ≤ < 1.5. </DF> Such a mixed ionic conductor has not only the necessary conductivity for electrochemical devices such as fuel cells, but also superior moisture resistance. |
