The synthesys of nanosized potassium metatantalate in molten nitrate environment

In this paper, we describe the synthesis of nanosize potassium metatantalate, using a method of metallic tantalum powder oxidation in molten potassium nitrate. In addition, we examine the nanopowder, employing the methods of XRD, conductometry, and transparent electronic microscopy. In the course of the experimental study, it turns out that the quantity of potassium hydroxide (KOH/Ta = 1,2) must be used relatively to the stoichiometry of reaction to minimize the admixtures of polytanthalates. Finally, deploying data on conductometry and dielectric penetrability, we assume the existence of semiconductor eleсtroconduсtivity, which is not typical of the macro-crystalline powders.

Publication year: 
2008
Issue: 
1
УДК: 
546.882
С. 117–122, укр., Іл. 4. Табл. 1. Бібліогр.: 16 назв.
References: 

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