Heterogeneous doping of sulfide-conducting phases based on calcium and barium thiolanthanates

The chemical method of preparation of oxide precursors was used to obtain sulfide-conducting ionic salts of CaY 2 S 4 , BaSm 2 S 4 and heterogeneous additives of ZrS 2 and SiS 2 , accordingly. The sintering modes for obtaining the heterogeneous systems of CaY 2 S 4 –ZrS 2 and BaSm2S4–SiS2 were chose...

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Bibliographic Details
Published inRussian journal of electrochemistry Vol. 53; no. 7; pp. 790 - 798
Main Authors Kosheleva, E. V., Pentin, M. A., Kalinina, L. A., Mikhailichenko, T. V., Lapteva, T. A., Ushakova, Yu. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2017
Springer Nature B.V
Subjects
Additives
Chemistry
Chemistry and Materials Science
Conductivity
Differential thermogravimetric analysis
Electrochemistry
Ions
Molten salt electrolytes
Physical Chemistry
Sintering
Solid electrolytes
Stability analysis
Thermal analysis
Thermal stability
silicon sulfide
zirconium sulfide
heterogeneous mixtures
calcium thioyttrate
barium thiosamarate
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Summary:The chemical method of preparation of oxide precursors was used to obtain sulfide-conducting ionic salts of CaY 2 S 4 , BaSm 2 S 4 and heterogeneous additives of ZrS 2 and SiS 2 , accordingly. The sintering modes for obtaining the heterogeneous systems of CaY 2 S 4 –ZrS 2 and BaSm2S4–SiS2 were chosen. Samples were characterized using the methods of X-ray phase analysis and microprobe analysis. The methods of thermogravimetric and differential thermal analysis were used to determine thermal stability of samples. The temperature and concentration dependences of conductivity and average ionic transport numbers were studied. The range of compositions of heterogeneous mixtures is determined in which conductivity considerably exceeds conductivity of the basic sulfide-conducting solid electrolytes.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193517070059