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