| abstract |
A compound ABCO(x- delta)Hal(y- zeta) with a potassium nickel fluorite structure that has a high conductivity for electrons is disclosed, where x + y = 4, and delta and zeta lie between 0.7 and + 0.7, and wherein A comprises at least one metal selected from the group consisting of Na, K, Ca, Ba, La, Pr, Sr, Ce, Nb, Pb, Nd, Sm, and Gd, and wherein B comprises at least one metal selected from the same group, and wherein C comprises at least one metal selected from the group consisting of Cu, Mg, Ti, V, Cr, Mn, Fe, Co, Nb, Mo, W and Zr and/or a metal selected from the group consisting of Pt, Ru, Ir, Rh, Pd and Ni, where A and B are not identical and wherein A and C are not both Nb and wherein Hal comprises at least one halogen atom selected from the group consisting of F, Cl, Br and I. Also disclosed is an electrode for an electrochemical cell; a method for preparing an electrode of this type and an electrochemical cell formed with an electrode of this type. |