| Autor: |
Solomakhina, E. E., Shadrina, M. A., Bryuzgina, A. V., Urusova, A. S., Aksenova, T. V., Cherepanov, V. A. |
| Zdroj: |
Russian Journal of Physical Chemistry; Sep2024, Vol. 98 Issue 9, p1968-1975, 8p |
| Abstrakt: |
Using the homogenizing annealing method and X-ray powder diffraction, it was shown that in the quasi-ternary PrOx–CoO–NiO system at 1373 K in air, two series of solid solutions are formed: PrCo NixO3 (0.0 ≤ x ≤ 0.4) with the orthorhombically distorted perovskite structure and Pr4Ni CoyO (0.7 ≤ y ≤ 1.5) with the Ruddlesden–Popper type structure with n = 3. The oxygen content in both series of solid solutions is close to stoichiometric. It is assumed that Ni2+ ions are predominantly located in octahedra located in the middle of the perovskite block, while Ni3+ and Co3+ ions are in octahedra adjacent to the rock salt layers. Phase diagrams of the PrOx–CoOx and PrOx–NiO systems were constructed in "T–composition" coordinates in air using literature data. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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