Superionic Conduction in Complex Fluorides of Antimony(III) MnSbxFy (M—Cations of an Alkali Metal, Ammonium, or Thallium, n = 1–3, and x = 1–4)
Superionic Conduction in Complex Fluorides of Antimony(III) MnSbxFy (M—Cations of an Alkali Metal, Ammonium, or Thallium, n = 1–3, and x = 1–4)
复制标题
锑 (III) MnSbxFy 复合氟化物中的超离子传导（M—碱金属、铵或铊的阳离子，n = 1–3，x = 1–4）
DOI：
10.1007/s11175-005-0095-y
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发表时间：
2005
影响因子：
1.2
通讯作者：
V. Sergienko
中科院分区：
文献类型：
--
作者：
V. Kavun;N. Uvarov;A. Slobodyuk;O. Brovkina;L. A. Zemnukhova;V. Sergienko
采用~(19)F NMR和阻抗谱方法研究了复合三价氟化锑MSb4F13、MSb3F10、MSb2F7、M2Sb3F11、M3Sb4F15和MSbF4(M为碱金属阳离子、铵、铊)的氟(铵)离子内部迁移率和电物理特性。氟化物的阳离子和阴离子亚晶格中的离子运动类型在 150–500 K 下确定。氟化物中的多晶型转变通常是向超离子态的相变，其高离子（超离子）电导率（400 K 时 σ ≥ 10−4 至 10−2S cm−1）是由于氟化物、铵以及可能的钠、钾和钠离子的扩散运动造成的。铊。铊离子的高极化率有利于氟化物中氟离子的高迁移率的发展。
Methods of19F NMR and impedance spectroscopy are used to investigate the internal mobility of fluoride (ammonium) ions and electrophysical characteristics of complex trivalent antimony fluorides MSb4F13, MSb3F10, MSb2F7, M2Sb3F11, M3Sb4F15, and MSbF4(M is an alkali cation, ammonium, thallium). The ion motion types in the cationic and anionic sublattices of the fluorides are determined at 150–500 K. The polymorphous transformations in the fluorides are usually phase transitions to a superionic state and their high ionic (superionic) conductivity (σ ≥ 10−4to 10−2S cm−1at 400 K) is due to the diffusion motion of ions of fluoride, ammonium, and possibly sodium, potassium, and thallium. The high polarizability of thallium ions favors the development of high mobility of fluoride ions in the fluorides.