Patent ID: 7504172

Claim:
An anode for a solid oxide fuel cell, wherein at least a part of the anode is a double perovskite oxide material having the general formula I: (Ln a X b ) e (Z 1 c Z 2 d ) f O g (I) wherein Ln is selected from the group consisting of Y, La, a Lanthanide series element, and any combination thereof and X also represents an element occupying the A site of a perovskite oxide and is selected from the group consisting of Sr, Ca and Ba, and Z 1 and Z 2 represent different elements occupying the B site of a perovskite oxide and are selected from the group consisting of Cr, Mn, Mg and Fe, and wherein a has a value from 0 to 1, b has a value of from 1 to 0, and each of c and d has a value of from 0.25 to 0.75, provided that a+b has a value of 1, and c+d, has a value of 1, and wherein e has a value of from 0.8 to 1, wherein f has a value of from 0.8 to 1, and g has a value of from 2.5 to 3.2; said material optionally including at least one dopant.