prov:value
| - o, Cr, Cu, Fe, Ni, Pd, Pt, Zn, and alloys and mixtures thereof; II. Oxides of the general formula My M'1-y Ox, wherein at least one M element is different than at least one M' element, M is selected from Ba, Li, Nb, Pr, Sn, Sr, and mixtures thereof, M' is selected from In, Nb, Ni, Ti and mixtures thereof, 0???y???1 and x is a number which satisfies the valence requirements of the other elements; I
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