Synthesis, Ionic Mobility, and Conductivity of Composites Based on Tin and Lead Difluorides According to the 19F NMR and Impedance Spectroscopy Data

被引：0

作者：

Slobodyuk, A. B. ^{[1
]}

Telin, I. A. ^{[1
]}

Polyantsev, M. M. ^{[1
]}

Uvarov, N. F. ^{[2
]}

Kavun, V. Ya. ^{[1
]}

机构：

[1] Russian Acad Sci, Far East Branch, Inst Chem, Vladivostok, Russia

[2] Russian Acad Sci, Siberian Branch, Inst Solid State Chem & Mechanochem, Novosibirsk, Russia

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2024年 / 60卷 / 06期

关键词：

composites; solid solutions; ionic mobility; ionic conductivity; F-19 NMR spectra; XRD; impedance spectroscopy; SOLID-SOLUTIONS; PBSNF4;

D O I：

10.1134/S1023193524700058

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The ionic mobility and conductivity of composites and compounds of the eutectic and close composition obtained by different methods in the PbF2-SnF2 system are studied based on the F-19 NMR and impedance data. The stages of transformation of the F-19 NMR spectra of these samples, their connection with the types of ionic movements, and the possible factors determining their ionic conductivity are considered. It is shown that the composition of the majority of composites includes the fluorite phase characterized by the high values of ionic mobility and conductivity. In the region close to the eutectic, a single-phase sample with the fluorite structure is obtained for the first time. The conductivity of this phase (5 x 10(-3) S/cm at 390 K) makes it possible to consider it as the basis for synthesizing functional materials.

引用

页码：459 / 467

页数：9

共 24 条

[21] Synthesis and complex study of potassium ammonium hexafluorozirconates: Ion mobility, phase transitions, and ionic conductivity in K2−n(NH4)nZrF6 compounds as probed by NMR, DTA, and impedance spectroscopy
V. Ya. Kavun
N. A. Didenko
A. V. Gerasimenko
A. B. Slobodyuk
I. A. Tkachenko
N. F. Uvarov
V. I. Sergienko
Russian Journal of Inorganic Chemistry, 2006, 51 : 513 - 520
[22] Ionic conductivity properties and 19F NMR investigation in Ln1-yCdyF3-y (Ln=Ce, Nd) solid solutions with tysonite-type structure -: Part I:: Ionic conductivity properties
El Omari, M
Senegas, J
Reau, JM
SOLID STATE IONICS, 1998, 107 (3-4) : 281 - 291
[23] Ionic mobility and phase transitions in heptafluorodiantimonates MSb2F7 and Cs(1−x)Mx′Sb2F7 (M′ = K, NH4) according to NMR and DSC data
V. Ya. Kavun
A. B. Slobodyuk
M. M. Polyantsev
L. A. Zemnukhova
Journal of Structural Chemistry, 2013, 54 : 137 - 145
[24] IONIC MOBILITY AND PHASE TRANSITIONS IN HEPTAFLUORODIANTIMONATES MSb2F7 AND Cs(1-x)M′xSb2F7 (M′ = K, NH4) ACCORDING TO NMR AND DSC DATA
Kavun, V. Ya.
Slobodyuk, A. B.
Polyantsev, M. M.
Zemnukhova, L. A.
JOURNAL OF STRUCTURAL CHEMISTRY, 2013, 54 : S137 - S145

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