Bidimensional sodium ionic conduction of oxyborates Na2M2(BO3)2O (M = Al, Ga) and Na2−2xCaxGa2(BO3)2O (x = 0.25, 0.50)

Gwenaël Corbel; Daniele Mazza; Odile Bohnké; Marc Leblanc

doi:10.1016/j.solidstatesciences.2005.01.016

Article dans une revue

Bidimensional sodium ionic conduction of oxyborates Na2M2(BO3)2O (M = Al, Ga) and Na2−2xCaxGa2(BO3)2O (x = 0.25, 0.50)

Gwenaël Corbel ¹ Daniele Mazza ² Odile Bohnké ¹ Marc Leblanc ¹

1 UM - Le Mans Université

2 DIpartimento di Scienza dei Materiali e Ingegneria Chimica

Abstract : Crystalline samples of Na2M2(BO3)2O (M = Al, Ga), Na1.5Ca0.25Ga2(BO3)2O and NaCa0.5Ga2(BO3)2O are prepared by conventional high temperature solid state synthesis technique. Temperature dependent impedance spectroscopy measurements are performed. For Na2Al2(BO3)2O and Na2Ga2(BO3)2O, high and low temperature regimes have to be distinguished. Only one regime is observed for the calcium-substituted samples Na1.5Ca0.25Ga2(BO3)2O and NaCa0.5Ga2(BO3)2O.

Keywords : Sodium oxyborates Ionic conductivity Bond valence analysis

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Article dans une revue

Domaine :

Chimie

Chimie / Cristallographie

Chimie / Chimie inorganique

Chimie / Matériaux

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https://hal-univ-lemans.archives-ouvertes.fr/hal-02134995
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Soumis le : lundi 20 mai 2019 - 21:13:02
Dernière modification le : mardi 30 novembre 2021 - 14:32:02

Bidimensional sodium ionic conduction of oxyborates Na2M2(BO3)2O (M = Al, Ga) and Na2−2xCaxGa2(BO3)2O (x = 0.25, 0.50)

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Bidimensional sodium ionic conduction of oxyborates Na2M2(BO3)2O (M = Al, Ga) and Na2−2xCaxGa2(BO3)2O (x = 0.25, 0.50)

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