研究论文

固体核磁共振7Li SAE技术揭示晶体晶格中的锂离子迁移

  • 张炜 ,
  • 刘清华 ,
  • 王建印 ,
  • 陈群 ,
  • 胡炳文
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  • 上海市磁共振重点实验室&物理与材料科学学院, 华东师范大学, 上海 200062

收稿日期: 2019-04-28

  网络出版日期: 2019-07-24

基金资助

the National Natural Science Foundation of China (21872055).

Revealing of Li-Ion Transportation in Crystal Lattices by 7Li SAE in Solid-State NMR

  • ZHANG Wei ,
  • LIU Qing-hua ,
  • WANG Jian-yin ,
  • CHEN Qun ,
  • HU Bing-wen
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  • Shanghai Key Laboratory of Magnetic Resonance & School of Physics & Materials Science, East China Normal University, Shanghai 200062, China

Received date: 2019-04-28

  Online published: 2019-07-24

Supported by

the National Natural Science Foundation of China (21872055).

摘要

本文采用自旋对齐回波(SAE)研究了α-LiAsF6/PEO6低聚环氧乙烯(PEO)分子量的体系.结果表明,自旋-晶格弛豫时间和线宽不是表征高电导率的好指标,而SAE实验的相关速率kSAE是表征高电导率的较好指标.

本文引用格式

张炜 , 刘清华 , 王建印 , 陈群 , 胡炳文 . 固体核磁共振7Li SAE技术揭示晶体晶格中的锂离子迁移[J]. 波谱学杂志, 2020 , 37(1) : 61 -66 . DOI: 10.11938/cjmr20192756

Abstract

Spin alignment echo (SAE) is employed here to study the α-LiAsF6/PEO6 system with low poly(ethylene oxide) (PEO) molecular weight. We show that the correlation rate kSAE from SAE experiments, but not the spin-lattice relaxation time and the linewidth, is a better indicator to characterize the higher conductivity.

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