Structural features and transport properties of lithiated fluorite-like molybdates Nd 5 Mo 3 O 16  in the temperature range 20–900°C

E. I. Orlova; Орлова Е. И.; E. S. Smirnova; Смирнова Е. С.; N. V. Lyskov; Лысков Н. В.; E. P. Kharitonova; Харитонова E. П.; T. A. Sorokin; Сорокин Т. А.; A. M. Antipin; Антипин А. М.; E. V. Sidorova; Сидорова Е. В.; N. E. Novikova; Новикова Н. Е.; N. I. Sorokina; Сорокина Н. И.; V. I. Voronkova; Воронкова В. И.; O. A. Alekseeva; Алексеева О. А.

doi:10.7868/S3034551025040076

Structural features and transport properties of lithiated fluorite-like molybdates Nd₅Mo₃O₁₆ in the temperature range 20–900°C

Authors: Orlova E.I.¹^,2, Smirnova E.S.¹, Lyskov N.V.³, Kharitonova E.P.¹^,2, Sorokin T.A.¹, Antipin A.M.¹, Sidorova E.V.¹, Novikova N.E.¹, Sorokina N.I.¹, Voronkova V.I.², Alekseeva O.A.¹
Affiliations:
1. Shubnikov Institute of Crystallography of the Kurchatov Complex Crystallography and Photonics of the NRC “Kurchatov Institute”
2. Lomonosov Moscow State University
3. Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS
Issue: Vol 70, No 4 (2025)
Pages: 590-597
Section: СТРУКТУРА НЕОРГАНИЧЕСКИХ СОЕДИНЕНИЙ
URL: https://journals.rcsi.science/0023-4761/article/view/306267
DOI: https://doi.org/10.7868/S3034551025040076
EDN: https://elibrary.ru/jfxavt
ID: 306267

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Abstract

The structure of lithiated fluorite-like molybdates of the Ln₅Mo₃O_16+δ family was studied using accurate X-ray diffraction analysis in the temperature range 20–777°C (293–1050 K). Thermally activated redistribution of oxygen ions over basic and interstitial positions and reversible change in the position occupancies upon heating–cooling were established. Thermal stability, ionic oxygen conductivity and dielectric properties of ceramic samples of undoped and Li-containing Nd₅Mo₃O_16+δphases were studied in the temperature range 20–900°C. The results demonstrate the possibility of controlling the functional properties of materials for use in medium-temperature solid oxide fuel cells.

References

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In the print version, the article was published under the DOI: 10.31857/S0023476125040076

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