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Lithium oxide solution in chloride melts as a medium to prepare LiCoO2 nanoparticles

Published online by Cambridge University Press:  22 January 2014

Vladimir Khokhlov ,
Dmitriy Modenov ,
Vasiliy Dokutovich ,
Viktor Kochedykov ,
Irina Zakir’yanova ,
Emma Vovkotrub  and
Igor’ Beketov
Vladimir Khokhlov*
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Dmitriy Modenov
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Vasiliy Dokutovich
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Viktor Kochedykov
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Irina Zakir’yanova
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Emma Vovkotrub
Affiliation:
Institute of High-Temperature Electrochemistry, Ural Branch, Russian Academy of Sciences, 620990 Ekaterinburg, Russia
Igor’ Beketov
Affiliation:
Institute of Electrophysics, Ural Branch, Russian Academy of Sciences, 620016 Ekaterinburg, Russia
*
Address all correspondence to Vladimir Khokhlov at[email protected]
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Abstract

The paper describes a new technique of molten salt synthesis (MSS) that is based on the direct oxidation of halide ions with molecular oxygen in thermally stable halide melts to prepare nanoparticles of complex oxides. Lithium cobaltate (LiCoO2) was chosen as a model compound for testing this method. Synthesis was achieved in LiCl–CoCl2 melts at 600 and 700 °C, respectively, under a dry-air atmosphere. Fourier transform infrared (FTIR) and Raman spectroscopies, x-ray diffraction (XRD), and transmission electron microscopy (TEM) were used to study the products obtained. The route suggested results in the formation of stoichiometric high-temperature (HT) LiCoO2 powders.

Type
Research Letters
Information
MRS Communications , Volume 4 , Issue 1 , March 2014 , pp. 15 - 18
Copyright
Copyright © Materials Research Society 2014 

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