A study on structural properties, conductivity and FT-IR spectroscopy of Cu–Al doubly substituted Bi4V2O11
| hal.structure.identifier | Université Cadi Ayyad [Marrakech] [UCA] | |
| dc.contributor.author | ESSALIM, Rachida | |
| hal.structure.identifier | Université Cadi Ayyad [Marrakech] [UCA] | |
| dc.contributor.author | AMMAR, Abdelaziz | |
| hal.structure.identifier | Laboratoire de physico chimie des matériaux et environnement-FSS de Marrakech [LPCME] | |
| dc.contributor.author | ZAMAMA, Mohamed | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAUVY, Fabrice | |
| dc.date.issued | 2020-08 | |
| dc.identifier.issn | 0022-4596 | |
| dc.description.abstractEn | The double-substituted solid solutions Bi4V2-xCux/2Alx/2O11-5x/4, with identical quantitative compositions of Cu2+ and Al3+ ions, can occur for a substitution rate 0.1 ≤ x ≤ 0.6. The compound with x = 0.1 is found to be a monoclinic α-form of Bi4V2O11, whereas compounds with 0.2 ≤ x ≤ 0.6 are found to be tetragonal γ and γ’ polymorphs. We used electrochemical impedance spectroscopy to measure the electrical conductivity of doped samples in the temperature range of 250–700 °C. The slope changes observed in the Arrhenius plots might be related to the microstructural transitions occurring in these compounds. The sample with x = 0.2 shows the highest ionic conductivity values. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Bismuth vanadium oxide | |
| dc.subject.en | BIMEVOX materials | |
| dc.subject.en | Ionic conductors | |
| dc.title.en | A study on structural properties, conductivity and FT-IR spectroscopy of Cu–Al doubly substituted Bi4V2O11 | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jssc.2020.121405 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Solid State Chemistry | |
| bordeaux.page | 121405 (8 p.) | |
| bordeaux.volume | 288 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02868745 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02868745v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Solid%20State%20Chemistry&rft.date=2020-08&rft.volume=288&rft.spage=121405%20(8%20p.)&rft.epage=121405%20(8%20p.)&rft.eissn=0022-4596&rft.issn=0022-4596&rft.au=ESSALIM,%20Rachida&AMMAR,%20Abdelaziz&ZAMAMA,%20Mohamed&MAUVY,%20Fabrice&rft.genre=article |
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