Standard Gibbs energy of formation of tellurium dioxide measurement by a solid-oxide electrolyte EMF technique

(−)Pt, Ir, Te(s, l), TeO2(s, l)|YSZ|O2, Pt(+),ΔfG° (kJ/mol) = −317.09 + 0.180 T (K) ± 0.307 (642–722.15 K) both phasess are solid.ΔfG° (kJ/mol) = −318.01 + 0.181 T (K) ± 0.308 (722.15–1005.8 K) Te – liquid; TeO2 – solid.ΔfG° (kJ/mol) = −256.26 + 0.120 T (K) ± 0.226 (1005.8–1068 K) both phases are liquid.