caa a22 4500 467927642 CHVBK 20180406152934.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1134/S0020168506020154 doi (NATIONALLICENCE)springer-10.1134/S0020168506020154 Thermodynamic and structural properties of PrBaCo2O5 + δ [Elektronische Daten] [I. Leonidov, M. Patrakeev, E. Mitberg, O. Leonidova, V. Kozhevnikov] The oxygen content of the double cobaltite PrBaCo2O5 + δ was determined by coulometric titration in broad temperature and oxygen pressure ranges, and the partial thermodynamic functions of oxygen were evaluated. The results on the nonstoichiometry and structural properties of PrBaCo2O5 + δ demonstrate that, at 5 + δ < 5.3, this cobaltite has a high-temperature phase with lattice parameters a = 11.774 Å, b = 11.932 Å, and c = 7.609 Å. The composition dependences of $$\Delta \bar H(O)$$ and $$\Delta \bar S(O)$$ indicate that the 3a p × 3a p × 2a p orthorhombic structure persists in the range 5.15 ≤ 5 + δ ≤ 5.30. Some of the Co3+ ions are shown to disproportionate according to the scheme 2Co3+=Co2++Co4+. Pleiades Publishing, Inc., 2006 Leonidov I. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut Patrakeev M. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut Mitberg E. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut Leonidova O. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut Kozhevnikov V. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut Inorganic Materials Nauka/Interperiodica 42/2(2006-02-01), 196-201 0020-1685 42:2<196 2006 42 10789 https://doi.org/10.1134/S0020168506020154 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0020168506020154 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leonidov I. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Patrakeev M. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Mitberg E. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Leonidova O. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 700 1- Kozhevnikov V. Institute of Solid-State Chemistry, Ural Division, Russian Academy of Sciences, Pervomaiskaya ul. 91, 620219, Yekaterinburg, Russia aut NATIONALLICENCE 773 0- Inorganic Materials Nauka/Interperiodica 42/2(2006-02-01), 196-201 0020-1685 42:2<196 2006 42 10789 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer