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Synthesis and Electrical Properties of a Fluorite-Like Nd5Mo3O16 Compound with Partial Substitution of Molybdenum by Tungsten, Niobium, or Vanadiumстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 27 марта 2018 г.
- Авторы: Voronkova V.I., Kharitonova E.P., Orlova E.I.
- Журнал: Crystallography Reports
- Том: 63
- Номер: 1
- Год издания: 2018
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 127
- Последняя страница: 131
- DOI: 10.1134/S1063774518010212
- Аннотация: The phase formation of Nd5Mo3-xWxO16.5, Nd5Mo3-xNbxO16.5-x/2, and Nd5Mo3-xVxO16.5-x/2 solid solutions based on a fluorite-like Nd5Mo3O16.5 compound (mixed conductor with interstitial oxygen conductivity) has been studied. The electrical conductivity of doped compounds obeys the Arrhenius law and, at a low impurity content, is as high as 0.03-0.08 S/cm at 800 degrees C. Substitution of Mo6+ cations by V5+ and Nb5+ cations reduces the interstitial oxygen content, which causes a decrease in the solid-solution electrical conductivity by 1-2 orders of magnitude and a decrease in the cubic unit-cell parameter. A wide diffuse anomaly with a maximum of about 1500-4000 has been observed in the temperature dependence of the permittivity for all single-crystal and polycrystalline samples in the range of 300-900 degrees C.
- Добавил в систему: Орлова Екатерина Игоревна