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- Title
Synthesis, Crystal Structure, and Properties of NdNi<sub>0.5</sub>Mn<sub>0.5</sub>O<sub>3-δ</sub> - A Possible Cathode Material for IT-SOFCs.
- Authors
Hossain, A.; Gilev, A. R.; Kiselev, E. A.; Cherepanov, V. A.
- Abstract
The crystal structure and properties of NdNi0.5Mn0.5O3-δ were studied in the temperature range of 25-1000°C in air. The perovskite-like monoclinic crystal structure (P21/n) was stable at all studied temperatures. NdNi0.5Mn0.5O3-δ exhibited moderate thermal expansion with linear thermal expansion coefficient of 10.12 × 10-6 K-1 (200-1000°C). Oxygen non-stoichiometry was almost temperature-independent in the whole temperature range studied with absolute value of 0.15 at room temperature. Total conductivity of the oxide was shown to be thermally activated with activation energy of 0.45 eV (350-1000°C) and the maximal value of 15 S/cm at 1000°C.
- Subjects
CRYSTAL structure; MANGANITE; MONOCLINIC crystal system; NONSTOICHIOMETRIC compounds; THERMAL expansion
- Publication
KnE Materials Science, 2018, p109
- ISSN
2519-1438
- Publication type
Article
- DOI
10.18502/kms.v4i2.3044