Вид документа : Статья из журнала Шифр издания : 54/H 65 Автор(ы) : Bahteeva Ju. A., Leonidov I. A., Patrakeev M. V., Mitberg E. B., Kozhevnikov V. L., Poeppelmeier K. R. Заглавие : High-temperature ion transport in La1-xSrxFeO3-delta Параллельн. заглавия :High-temperature ion transport in La1-xSrxFeO3-delta Место публикации : Journal of Solid State Electrochemistry . - 2004. - V. 8, N 9. - С. 578-584. - ISSN 1432-8488 . - ISSN 1432-8488 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The conductivity of the entire solid solution La1-xSrxFeO3-delta, where x = 0.2, 0.4, 0.5, 0.7 and 0.9, in the oxygen partial pressure range 10(-19) to 0.5 atm and temperatures between 750 and 950 °C is reported. The analysis of the isothermal pressure dependences of the conductivity reveal that the lanthanum-strontium ferrites can be characterized as mixed ion-electron conductors in the low-oxygen pressure/high-oxygen deficiency limit. The partial contribution to conductivity from oxygen ions increases with strontium content and attains a maximal value at x = 0.5. Further increase in doping results in the development of oxygen vacancy ordering phenomena and deterioration of the conducting properties Доп.точки доступа: Bahteeva, Ju. A.; Leonidov, I. A.; Патракеев Михаил Валентинович; Patrakeev, M. V.; Митберг Эдуард Борисович; Mitberg, E. B.; Кожевников Виктор Леонидович; Kozhevnikov, V. L.; Poeppelmeier, K. R.