| http://www.w3.org/ns/prov#value | - d from the group consisting of Al, Rh, and Cr, and B is an element in the pentavalent state selected from the group consisting of Sb and Ta, (ii) RuO2 and (iii) TiO2 ; wherein the mole fraction of ABO4 is between 0.01 and 0.42, the mole fraction of RuO2 is between 0.03 and 0.42 and the mole fraction of TiO2 is between 0.55 and 0.96.
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