AGNAOU, Abdelmajid; MHAIRA, Wafaa; ESSALIM, Rachida; ZAMAMA, Mohamed; MAUVY, Fabrice; ALGA, Maati; AMMAR, Abdelaziz

doi:10.1039/D3RA00485F

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AGNAOU, Abdelmajid
Laboratoire des Sciences des Matériaux et Optimisation des Procédés [SCIMATOP]

MHAIRA, Wafaa
Laboratoire des Sciences des Matériaux et Optimisation des Procédés [SCIMATOP]

ESSALIM, Rachida
Laboratoire des Sciences des Matériaux et Optimisation des Procédés [SCIMATOP]

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RSC Advances. 2023, vol. 13, n° 12, p. 8015-8024

Royal Society of Chemistry

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Partial substitution of vanadium with silicon in the compound Bi4V2O11, which belongs to the Aurivillius family, leads to the creation of a solid solution Bi4V2−xSixO11−δ (0 ≤ x ≤ 0.4). The compound with x = 0.1 turns out to be a monoclinic α-form of Bi4V2O11, 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.< Leer menos

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New silicon substituted BiMeVOx: synthesis and study of structural properties in relation to ionic conductivity

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