...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica, B. Condensed Matter >Structure, microstructure and ionic conductivity of the solid solution LiTi _(2-x)Sn _x(PO _4) _3
【24h】

Structure, microstructure and ionic conductivity of the solid solution LiTi _(2-x)Sn _x(PO _4) _3

机译：固溶体LiTi _（2-x）Sn _x（PO _4）_3的结构，微观结构和离子电导率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Nasicon compounds with the composition LiTi _(2-x)Sn _x(PO _4) _3 (x=01.8) were synthesised by the solid state reaction. Their structures were determined from X-ray powder diffraction using Rietveld analysis. All the compositions present the space group R-3c. The refinements show that the Ti and Sn cations are statistically distributed over the same position while the Li ones are exclusively located on the M1 site. The lattice constants a and c exhibit linear variation over the whole composition range. The bond lengths are in accordance with those of other Nasicon structures. The SEM micrographs of the samples show relative porous microstructures. The ionic conductivity is about 10 ~(-4)10 ~(-5) S cm ~(-1); for the activation energy, a typical value of 0.32 eV is obtained for x=0.6 composition whereas significant deviation from linearity in the temperature dependence of the dc conductivity, is observed for the Sn-rich ones. This tendency is discussed along with the structural features.
机译：通过固相反应合成了组成为LiTi _（2-x）Sn _x（PO _4）_3（x = 01.8）的Nasicon化合物。使用Rietveld分析通过X射线粉末衍射确定其结构。所有组合物均具有空间基团R-3c。改进表明，Ti和Sn阳离子统计分布在同一位置，而Li阳离子仅位于M1位置。晶格常数a和c在整个组成范围内表现出线性变化。键长与其他Nasicon结构的键长一致。样品的SEM显微照片显示出相对多孔的微观结构。离子电导率约为10〜（-4）10〜（-5）S cm〜（-1）;对于活化能，对于x = 0.6的组成，典型值为0.32 eV，而对于富Sn的，其直流电导率与温度的线性关系明显偏离。与结构特征一起讨论了这种趋势。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号