Silver magnesium molybdate and silver cobalt molybdate: Synthesis and ionic conductivity

被引：6

作者：

Il'ina, A. A.

Stenina, I. A.

Lysanova, G. V.

Veresov, A. G.

Yaroslavtsev, A. B.

机构：

[1] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Fac Chem, Moscow 119992, Russia

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 51卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Molybdate; Scandium; High Ionic Conductivity; Double Molybdate; Silver Molybdate;

D O I：

10.1134/S0036023606060076

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Impedance spectroscopy, X-ray powder diffraction, and electron microscopy are used to study silver magnesium and silver cobalt molybdates of composition Ag(2)A(2)(II) (MoO4)(3) (A = Mg, Co) and the products of their aliovalent doping by scandium(III) and vanadium(V). The double molybdates have high ionic conductivities at temperatures above 600 K. A partial aliovalent substitution of scandium for magnesium or vanadium for molybdenum increases the ionic conductivity of the molybdates below 473 K. The defect mobility and the enthalpy of defect formation in the Ag2Mg2(MoO4)(3) structure are estimated proceeding from the experimental data.

引用

页码：890 / 894

页数：5