Tellurites of some s–f elements: Synthesis, X-ray diffraction, and electrophysical properties

A possibility of solid-phase synthesis of new cerium double tellurites with s -elements from the oxides of cerium(IV), tellurium(IV) and magnesium (calcium, strontium) carbonates was demonstrated. It was determined by the X-ray diffraction method that the magnesium-cerium tellurite crystallizes in a...

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Bibliographic Details
Published in:Russian journal of general chemistry 2012-08, Vol.82 (8), p.1357-1360
Main Authors: Rustembekov, K. T., Dyusekeeva, A. T.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
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Summary:A possibility of solid-phase synthesis of new cerium double tellurites with s -elements from the oxides of cerium(IV), tellurium(IV) and magnesium (calcium, strontium) carbonates was demonstrated. It was determined by the X-ray diffraction method that the magnesium-cerium tellurite crystallizes in a cubic system, while calcium-cerium and strontium-cerium tellurites crystallize in the tetragonal crystal system.The temperature dependence of the electrical resistance of these compounds in the range of 300–600 K was measured. The plots include sharp anomalous jumps due probably to the phase transitions of type II.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363212080051