CARNOTITE ANALOGS - SYNTHESIS, STRUCTURE AND PROPERTIES OF THE NA1-XKXUO2VO4 SOLID-SOLUTION (0 LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 1)

被引：45

作者：

ABRAHAM, F

DION, C

SAADI, M

机构：

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1993年 / 3卷 / 05期

关键词：

CARNOTITE; URANIUM OXIDE; VANADIUM OXIDE; CRYSTAL STRUCTURE; IONIC CONDUCTIVITY;

D O I：

10.1039/jm9930300459

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Crystal structures of synthetic K2(UO2)2V2O8 (carnotite) and Na2(UO2)2V2O8 have been refined using single-crystal X-ray diffraction. The alkali-metal ions were shown to lie between [(UO2)2V2O8]infinity layers. A continuous solid solution was obtained between these two compounds. Both compounds and the solid solution have high ionic conductivity. For example, K and Na compounds have conductivities at 500-degrees-C of 9.2 x 10(-5) and 1.7 x 10(-4) S cm-1, respectively, and activation energies of 0.57 and 0.52 eV.

引用

页码：459 / 463

页数：5

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