Incorporation of water in strontium tantalates with perovskite-related structure / Animitsa I,Norby T,Marion S,Glockner R,Neiman A // SOLID STATE IONICS. - 2001. - V. 145, l. 1-4. - P. 357-364.

ISSN/EISSN:

0167-2738 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The electrical properties and water uptake of the oxygen-deficient perovskite-related compounds Sr6Ta2O11 and Sr5.92Ta2.08O11.12 have been investigated with AC conductivity, transport number measurements and thermogravimetry. In wet atmospheres, they become hydrated mainly around 500 degreesC and exhibit mixed proton and oxygen ion conductivity. Part of the water uptake toward the theoretical hydration limit takes place in a step, probably a phase transition related to oxygen vacancy disordering or proton ordering, or both. The transition is accompanied also by steps and maxima in total conductivity, believed again to be related to order-disorder reactions. (C) 2001 Elsevier Science B.V. All rights reserved.

Author keywords:

perovskite; proton conduction; strontium tantalate; water uptake; order-disorder PROTON CONDUCTOR BA2IN2O5; OXYGEN; OXIDES; TRANSPORT

DOI:

10.1016/S0167-2738(01)00931-6

Web of Science ID:

ISI:000172095500046

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC
Note	10th International Conference on Solid State Protonic Conductors (SSPC10), MONTPELLIER, FRANCE, SEP 24-28, 2000
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	PROTON CONDUCTOR BA2IN2O5; OXYGEN; OXIDES; TRANSPORT
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Physical; Physics, Condensed Matter
ORCID-Numbers	Norby, Truls/0000-0003-0909-0439
Number-of-Cited-References	21
Usage-Count-Since-2013	8
Journal-ISO	Solid State Ion.
Doc-Delivery-Number	491ER