...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Science >Ion conduction in vanadium-substituted LiSn_2P_3O _(12) electrolyte nanomaterials
【24h】

Ion conduction in vanadium-substituted LiSn_2P_3O _(12) electrolyte nanomaterials

机译：钒取代的LiSn_2P_3O _（12）电解质纳米材料中的离子传导

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

LiSn_2P_(3 - y) V _y O_(12) powders with y = 0.2, 0.4, 0.6, and 0.8 are prepared by mechanochemical milling method. The pellets of the compounds are heat treated at temperatures between 700 to 1,000 °C for sintering period of 8 h. X-ray diffraction analysis indicates that all samples consist of rhombohedral crystalline LiSn_2P _3O_(12) phase. Energy dispersive X-ray analysis confirmed that V~(5+) has been successfully substituted into LiSn _2P_3O_(12) crystalline phase. The conductivities of the pellets are determined using impedance spectroscopy. Impedance analysis shows enhancement in both bulk and grain boundary conductivities with increase in y. The enhancement in bulk conductivity is due to decrease in bulk activation energy reflecting an increase in ion mobility as a result of an increase in bottleneck size. Enhancement in grain boundary conductivity is attributed to increase in the number of conducting pathways due to an increase in crystallite homogeneity.
机译：采用机械化学研磨法制备了y = 0.2、0.4、0.6和0.8的LiSn_2P_（3-y）V_y O_（12）粉末。将化合物粒料在700至1,000°C的温度下进行8小时的烧结热处理。 X射线衍射分析表明，所有样品均由菱面体结晶LiSn_2P _3O_（12）相组成。能量色散X射线分析证实，V〜（5+）已成功取代为LiSn_2P_3O_（12）晶相。粒料的电导率使用阻抗谱测定。阻抗分析显示，随着y的增加，块体和晶界电导率均增强。本体电导率的提高归因于本体活化能的降低，反映出由于瓶颈尺寸的增加而使离子迁移率增加。晶粒边界电导率的提高归因于由于微晶均匀性的增加而导致的导电路径数量的增加。

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