Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Crystal structure and thermal properties of the LixNa1–xKZnP2O7 solid solutions and its relation to the MM′ZnP2O7 diphosphate family. / Volkov, Sergey; Petrova, Maya; Sinel'shchikova, Olga; Firsova, Vera; Popova, Valentina; Ugolkov, Valery; Krzhizhanovskaya, Maria; Bubnova, Rimma.
в: Journal of Solid State Chemistry, Том 269, 01.01.2019, стр. 486-493.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Crystal structure and thermal properties of the LixNa1–xKZnP2O7 solid solutions and its relation to the MM′ZnP2O7 diphosphate family
AU - Volkov, Sergey
AU - Petrova, Maya
AU - Sinel'shchikova, Olga
AU - Firsova, Vera
AU - Popova, Valentina
AU - Ugolkov, Valery
AU - Krzhizhanovskaya, Maria
AU - Bubnova, Rimma
PY - 2019/1/1
Y1 - 2019/1/1
N2 - New solid solutions of LixNa1–xKZnP2O7 belonging to the MM'ZnP2O7 structural family (M = Li+, Na+, Zn2+; M’ = Na+, K+), were prepared and phase equilibria along the LiKZnP2O7–NaKZnP2O7 section were reported. These solid solutions were investigated single-crystal X-ray diffraction, high-temperature X-ray powder diffraction (HTXRD), differential scanning calorimetry, and impedance spectroscopy. A miscibility gap was found within the range of 0.8 < x < 1.0, and a binodal curve was constructed using HTXRD data. The similarity of the thermal and compositional deformation of LixNa1–xKZnP2O7 solid solutions is revealed: increasing the radius of the metal by 0.01 Å leads to the same deformations of the crystal structure as increasing the temperature by 31 °C. The Li/Na↔Zn cation exchange lead to an increase in conductivity above 300 °C. The alkali mixed effect in activation energy occurs for LixNa1–xKZnP2O7 solid solutions near x = 0.5. The phase with the 2a×2b×c superstructure ordering was observed as a result of the solid solution melting.
AB - New solid solutions of LixNa1–xKZnP2O7 belonging to the MM'ZnP2O7 structural family (M = Li+, Na+, Zn2+; M’ = Na+, K+), were prepared and phase equilibria along the LiKZnP2O7–NaKZnP2O7 section were reported. These solid solutions were investigated single-crystal X-ray diffraction, high-temperature X-ray powder diffraction (HTXRD), differential scanning calorimetry, and impedance spectroscopy. A miscibility gap was found within the range of 0.8 < x < 1.0, and a binodal curve was constructed using HTXRD data. The similarity of the thermal and compositional deformation of LixNa1–xKZnP2O7 solid solutions is revealed: increasing the radius of the metal by 0.01 Å leads to the same deformations of the crystal structure as increasing the temperature by 31 °C. The Li/Na↔Zn cation exchange lead to an increase in conductivity above 300 °C. The alkali mixed effect in activation energy occurs for LixNa1–xKZnP2O7 solid solutions near x = 0.5. The phase with the 2a×2b×c superstructure ordering was observed as a result of the solid solution melting.
KW - Crystal structure
KW - Phase relationships
KW - Solid solutions
KW - Zinc diphosphates
UR - http://www.scopus.com/inward/record.url?scp=85055544594&partnerID=8YFLogxK
U2 - 10.1016/j.jssc.2018.10.029
DO - 10.1016/j.jssc.2018.10.029
M3 - Article
AN - SCOPUS:85055544594
VL - 269
SP - 486
EP - 493
JO - Journal of Solid State Chemistry
JF - Journal of Solid State Chemistry
SN - 0022-4596
ER -
ID: 35813625