Electric and thermogravimetric properties of brownmillerites based on barium oxides / Animitsa I. E.,Kochetova N. A.,Shailkhlislamova A. R. // RUSSIAN JOURNAL OF ELECTROCHEMISTRY. - 2007. - V. 43, l. 6. - P. 708-713.

ISSN/EISSN:

1023-1935 / нет данных

Type:

Article

Abstract:

The electric and thermogravimetric properties of oxygen-deficient perovskite-like complex oxides Ba2HoGaO5, Ba2YGaO5, Ba2ScInO5, and Ba2Sc2O5 are studied. It is found that these phases are capable of intercalating water from a gas phase; however, the total water amount is smaller than the supposed nominal concentration of oxygen vacancies calculated from formula A(2)BB'O-5{[}V-O](1). A comparison of the temperature dependences of conductivities suggests that the highest oxygen-ion conductivity is inherent in the phases with a statistical arrangement of oxygen vacancies (Ba2Sc2O5, Ba2ScInO5). In a humid atmosphere (when the contribution of proton conductivity is significant), the total conductivity alters in line with the oxygen-ion conductivity, i.e. it increases in the series Ba2YGaO5-Ba2HoGaO5-Ba2ScInO5-Ba2Sc2O5.

Author keywords:

perovskite-like phase; thermogravimetry; conductivity; oxygen vacancy SYSTEM

DOI:

10.1134/S1023193507060146

Web of Science ID:

ISI:000247977600014

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	SYSTEM
Research-Areas	Electrochemistry
Web-of-Science-Categories	Electrochemistry
Author-Email	irina.animitsa@usu.ru
Number-of-Cited-References	11
Usage-Count-Last-180-days	6
Usage-Count-Since-2013	9
Journal-ISO	Russ. J. Electrochem.
Doc-Delivery-Number	189GO