Lanthanum-lithium-sodium double chromates as ionic conductors
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Data
1997-03-20
Autores
Melnikov, P. [UNESP]
León, C.
Santamaría, J.
Sánchez-Quesada, F.
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Resumo
Lanthanum-lithium-sodium double chromates Li1-xNaxLa(CrO4)2 were prepared and analysed by means of admittance spectroscopy. Their a.c. conductivity parameters are correlated with structural details of high and low temperature forms of pure lanthanum-lithium double chromates. Lithium compounds show the lowest conductivity values and the highest activation energy for ion motion, while the sample Li0.5Na0.5La(CrO4)2 exhibits the highest conductivity 10-5 S cm-1 and the lowest activation energy 0.58 eV.
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Activation energy, Admittance spectroscopy, Alkali metals, Conductivity, Double chromates, Lanthanum
Como citar
Journal of Alloys and Compounds, v. 250, n. 1-2, p. 520-523, 1997.