E. I. Orlova, E. S. Smirnova, N. V. Lyskov, E. P. Kharitonova, T. A. Sorokin, A. M. Antipin, E. V. Sidorova, N. E. Novikova, N. I. Sorokina, V. I. Voronkova, O. A. Alekseeva
{"title":"Structural Features and Transport Properties of Lithiated Fluorite-Like Molybdates Nd5Mo3O16 in the Temperature Range of 20–900°С","authors":"E. I. Orlova, E. S. Smirnova, N. V. Lyskov, E. P. Kharitonova, T. A. Sorokin, A. M. Antipin, E. V. Sidorova, N. E. Novikova, N. I. Sorokina, V. I. Voronkova, O. A. Alekseeva","doi":"10.1134/S1063774525600565","DOIUrl":null,"url":null,"abstract":"<div><p>The structures of lithiated fluorite-like molybdates of the <i>Ln</i><sub>5</sub>Mo<sub>3</sub>O<span>\\(_{{16 + \\delta }}\\)</span> family were studied in the temperature range of 20–777°С (293–1050 К) by accurate X-ray diffraction analysis. A thermally activated redistribution of oxygen ions over the lattice and interstitial positions and reversible changes in the positions occupancies upon heating–cooling were established. The thermal stability, the oxygen ionic conductivity, and dielectric properties of ceramic samples of undoped and Li-containing phases Nd<sub>5</sub>Mo<sub>3</sub>O<span>\\(_{{16 + \\delta }}\\)</span> were investigated in the temperature range of 20–900°С. The study demonstrated the possibility of controlling the functional properties of materials for medium-temperature solid oxide fuel cells.</p></div>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"70 4","pages":"560 - 567"},"PeriodicalIF":0.5000,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774525600565","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The structures of lithiated fluorite-like molybdates of the Ln5Mo3O\(_{{16 + \delta }}\) family were studied in the temperature range of 20–777°С (293–1050 К) by accurate X-ray diffraction analysis. A thermally activated redistribution of oxygen ions over the lattice and interstitial positions and reversible changes in the positions occupancies upon heating–cooling were established. The thermal stability, the oxygen ionic conductivity, and dielectric properties of ceramic samples of undoped and Li-containing phases Nd5Mo3O\(_{{16 + \delta }}\) were investigated in the temperature range of 20–900°С. The study demonstrated the possibility of controlling the functional properties of materials for medium-temperature solid oxide fuel cells.
期刊介绍：
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.
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