New silicon substituted BiMeVO(x): synthesis and study of structural properties in relation to ionic conductivity

Partial substitution of vanadium with silicon in the compound Bi(4)V(2)O(11), which belongs to the Aurivillius family, leads to the creation of a solid solution Bi(4)V(2−x)Si(x)O(11−δ) (0 ≤ x ≤ 0.4). The compound with x = 0.1 turns out to be a monoclinic α-form of Bi(4)V(2)O(11), while the compounds...

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Detalles Bibliográficos
Autores principales: Agnanou, A., Mhaira, W., Essalim, R., Zamama, M., Mauvy, F., Alga, M., Ammar, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9999250/
https://www.ncbi.nlm.nih.gov/pubmed/36909757
http://dx.doi.org/10.1039/d3ra00485f
Descripción
Sumario:Partial substitution of vanadium with silicon in the compound Bi(4)V(2)O(11), which belongs to the Aurivillius family, leads to the creation of a solid solution Bi(4)V(2−x)Si(x)O(11−δ) (0 ≤ x ≤ 0.4). The compound with x = 0.1 turns out to be a monoclinic α-form of Bi(4)V(2)O(11), while the compounds with x = 0.2 and x = 0.3 are orthorhombic β-polymorphs, and the compound with x = 0.35 is of tetrahedral γ-polymorph. Electrochemical Impedance Spectroscopy has been used to measure the ionic conductivity of doped samples. The ceramic sample with x = 0.1 has the highest ionic conductivity values.

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