✦ LIBER ✦
ChemInform Abstract: Enhanced Low-Temperature Proton Conduction in Sr0.02La0.98NbO4-δ by Scheelite Phase Retention.
✍ Scribed by A. D. Brandao; I. Antunes; J. R. Frade; J. Torre; V. V. Kharton; D. P. Fagg
- Publisher
- John Wiley and Sons
- Year
- 2011
- Weight
- 21 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Enhanced Low-Temperature Proton Conduction in Sr 0.02 La 0.98 NbO 4-δ by Scheelite Phase Retention. -Powders of Sr0.02La0.98Nb1-xVxO4-δ (x = 0.15-0.5) are prepared by solid state synthesis of stoichiometric mixtures of SrCO3, La2O3, Nb2O5, and V2O5
(1300 °C, 10 h). Sr0.02La0.98Nb0.7V0.3O4-δ maintains a constant thermal expansion coefficient up to 1000 °C. The compound exhibits pure proton conduction of higher conductivity than the parent compound Sr 0.02 La 0.98 NbO 4-δ in the low-temperature range under wet oxidizing conditions. -(BRANDAO, A.