Abstract
The new niobium phases with Nb(II,IV), K and F ions were obtained on cathode by molten salts’ electrolysis of the system K2NbOF5 +FLINAK. These phases never are produced by electrolysis in the chloride molten system. Niobium phase with similar crystal habit and K ions in composition has been reported by E.Christensen et al. [1]. We initiated the present investigation in order to define some individual characteristics of the phases. The aims of our study are following: (a) identification of the niobium phases; (b) determination of their atomic structure; (c) analysis of their transformations under washing out a cathodic product with acid water solution and under the action of the KCl+NaCl melt.
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