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Cationic mobility in Li3−2x Nb x Fe2−x (PO4)3 complex phosphates

  • Synthesis and Properties of Inorganic Compounds
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Abstract

Synthesis and ionic conductivity of Li3−2x Nb x Fe2−x (PO4)3 complex phosphates were studied by X-ray powder diffraction and impedance spectroscopy. These phosphates are formed only at 900–1000°C. Variations in their thermal expansivity and unit cell parameters induced by aliovalent do** were characterized. The conductivity of these materials increases monotonically in the series Li0.5Nb1.25Fe0.75(PO4)3-LiNbFe(PO4)3 and Li1.2Nb0.9Fe1.1(PO4)3-Li3Fe2(PO4)3, which is explained by consecutive occupation of the Li(1) and Li(2) positions in their structures.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    A. R. Shaikhlislamova, I. A. Stenina & A. B. Yaroslavtsev

Authors
  1. A. R. Shaikhlislamova
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  2. I. A. Stenina
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  3. A. B. Yaroslavtsev
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Original Russian Text © A.R. Shaikhlislamova, I.A. Stenina, A.B. Yaroslavtsev, 2008, published in Zhurnal Neorganicheskoi Khimii, 2008, Vol. 53, No. 12, pp. 1957–1962.

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Shaikhlislamova, A.R., Stenina, I.A. & Yaroslavtsev, A.B. Cationic mobility in Li3−2x Nb x Fe2−x (PO4)3 complex phosphates. Russ. J. Inorg. Chem. 53, 1829–1833 (2008). https://doi.org/10.1134/S0036023608120012

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  • DOI: https://doi.org/10.1134/S0036023608120012

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