Patent ID: 8921257

Claim:
A composition comprising a compound of the following general formula (I): MoV a Nb b Pt c M d Z e O x (I) a is a number having a value of about 0.15 to about 0.50, b is a number having a value of about 0.05 to about 0.30, c is a number having a value of about 0.0001 to about 0.10, d is a number having a value of greater than 0 to about 0.35, e is a number having a value of 0 to about 0.10, x is a number depending on the relative amount and valence of the elements different from oxygen in formula (I), M is selected from the group consisting of Te; Te and Sb; Te and Ag; and Te, Ag, and Sb, if more than one M element is present, then each M element varies independently within the range of d, and Z is one or more element selected from the group consisting of Ru, Mn, Sc, Ti, Cr, Fe, Co, Ni, Cu, Zn, Ga, Y, Zr, Rh, Pd, In, Ce, Pr, Nd, Sm, Tb, Ta, W, Re, Ir, Au, Pb, and B, if more than one Z element is present, then each Z element varies independently within the range of e.