Preparation of LiSbO<sub>3</sub> through Antimony Complex and Exchange Behavior of Lithium Ion

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  • Preparation of LiSbO3 through Antimony Complex and Exchange Behavior of Lithimu Ion(E)

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Abstract

<p>Well-crystallized LiSb(OH)6 powders with a hexagonal structure were prepared by chemical bath deposition. The thermal decomposition of as-prepared samples was examined and the exchange behavior of lithium ion in LiSbO3 powders was studied. In order to obtain LiSb(OH)6 powders, it was essential to prepare under the following condition; obtaining precipitates of LiSb(OH)6 from a SbCl5 aqueous solution containing tartaric acid by adding LiOH above pH 9. From the results of XRD and FT-IR measurements, it was found that LiSbO3 powders with an orthorhombic structure were obtained by heating LiSb(OH)6 at 800°C. The release rate of lithium ion from LiSbO3 increased with the increase of refluxing temperature and time, and also concentration of nitric acid. The maximum value of exchange rate showed 94% when LiSbO3 powders dispersing in the nitric acid with a concentration above 1.0 mol dm−3 were refluxed at 30°C for 60 min. The insertion rate of lithium ion in HSbO3 also increased, of which behavior was similar to that of the release of lithium ion from LiSbO3. The maximum value of exchange rate was found to attain 87% by refluxing at 70°C for 360 min with the LiOH solution above the concentration of 0.1 mol dm−3.</p>

Journal

  • Electrochemistry

    Electrochemistry 67 (7), 769-773, 1999-07-05

    The Electrochemical Society of Japan

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