Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/27313
Title: Oxygen-ionic conductors based on substituted bismuth molybdates with column-type structural fragments
Authors: Mikhailovskaya, Z. A.
Buyanova, E. S.
Petrova, S. A.
Zhukovskii, V. M.
Issue Date: 2013
Citation: 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.
Abstract: 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.
Keywords: 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://hdl.handle.net/10995/27313
SCOPUS ID: 84880323014
WOS ID: WOS:000321773800008
PURE ID: 898841
ISSN: 1023-1935
DOI: 10.1134/S1023193513070112
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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