Synthesis and properties of La 2(Mo 1 - XM x) 2O 9 (M = Nb, Ta) ionic conductors

La 2(Mo 1 - xM x) 2O 9 (M = Nb, Ta; 0 < x ≤ 0.2) solid solutions were prepared, and their physicochemical and electrical properties were studied. Second harmonic generation measurements indicate that the solid solutions have a noncentrosymmetric structure and undergo a structural phase transition accompanied by a sharp increase in ionic conductivity, similar to that of La 2Mo 2O 9. The transition temperature is found to decrease with increasing Nb or Ta content. The introduction of 5 wt % Nb increases the 800°C conductivity of the material.

Авторы
Khadasheva Z.S. 1 , Venskovskii N.U. 1 , Safronenko M.G. 1 , Mosunov A.V.2 , Politova E.D.2 , Stefanovich S.Yu.2
Редакторы
-
Журнал
Издательство
-
Номер выпуска
11
Язык
Английский
Страницы
1168-1171
Статус
Опубликовано
Подразделение
-
Номер
-
Том
38
Год
2002
Организации
  • 1 Russ. Univ. of Peoples' Friendship, Ul. Miklukho-Maklaya 6, Moscow, 117198 Russia, Russian Federation
  • 2 Karpov Res. Inst. of Phys. Chemistry, Ul. Vorontsovo Pole 10, Moscow, 103064 Russia, Russian Federation
Ключевые слова
lanthanum; niobium; tantalum; article; chemical structure; conductance; phase transition; physical chemistry; synthesis
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/163/