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http://elar.urfu.ru/handle/10995/27313
Название: | Oxygen-ionic conductors based on substituted bismuth molybdates with column-type structural fragments |
Авторы: | Mikhailovskaya, Z. A. Buyanova, E. S. Petrova, S. A. Zhukovskii, V. M. |
Дата публикации: | 2013 |
Библиографическое описание: | Oxygen-ionic conductors based on substituted bismuth molybdates with column-type structural fragments / Z. A. Mikhailovskaya, E. S. Buyanova, S. A. Petrova [et al.] // Russian Journal of Electrochemistry. — 2013. — Vol. 49. — № 7. — P. 658-664. |
Аннотация: | The possibility of synthesizing oxygen-ionic conductors from substituted bismuth molybdates containing [Bi12O14] n 8n+ columns, MoO4 tetrahedra, and isolated Bi ions in their structure was studied. The specifics of their structure and electric conductivity were investigated. The general formula of the solid solutions can be recorded as Bi13Mo5 - x Me x O 34 - δ, where Me is the fouror five-valent d metal (Ti, Zr, V, Nb). The electric conductivity of doped bismuth molybdates considerably increased compared with that of the matrix compound. The electric conductivity reached 5.5 × 10-3 S cm-1 at 700 C and 1.8 × 10-4 S cm-1 at 350 C for the zirconium-doped compound with x = 0.4. The porosity of the ceramics was less than 5%; the thermal expansion coefficient was of the order of 14 × 10-6 K-1. Based on the set of their characteristics, these compounds are recommended as materials for membranes of electrochemical devices. © 2013 Pleiades Publishing, Ltd. |
Ключевые слова: | BISMUTH MOLYBDATES OXYGEN-IONIC CONDUCTORS BISMUTH MOLYBDATES ELECTROCHEMICAL DEVICES GENERAL FORMULAS STRUCTURAL FRAGMENTS THERMAL EXPANSION COEFFICIENTS BISMUTH ELECTRIC CONDUCTIVITY ELECTRIC CONDUCTIVITY MEASUREMENT IONIC CONDUCTION IONIC CONDUCTIVITY MEMBRANES MOLYBDENUM MOLYBDENUM COMPOUNDS NIOBIUM OXYGEN ZIRCONIUM BISMUTH COMPOUNDS |
URI: | http://elar.urfu.ru/handle/10995/27313 |
Идентификатор SCOPUS: | 84880323014 |
Идентификатор WOS: | 000321773800008 |
Идентификатор PURE: | 898841 |
ISSN: | 1023-1935 |
DOI: | 10.1134/S1023193513070112 |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
Файлы этого ресурса:
Файл | Описание | Размер | Формат | |
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scopus-2013-0475.pdf | 615,99 kB | Adobe PDF | Просмотреть/Открыть |
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