Lithium superionic conduction in lithium borohydride accompanied by structural transition
Lithium superionic conduction in lithium borohydride accompanied by structural transition
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DOI：
10.1063/1.2817934
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发表时间：
2007-11-26
影响因子：
4
通讯作者：
Takamura, Hitoshi
中科院分区：
文献类型：
--
作者：
Matsuo, Motoaki;Nakamori, Yuko;Takamura, Hitoshi
通过交流复阻抗法测得的硼氢化锂（LiBH4）的电导率由于在约390 K时从斜方相到六方相的结构转变而跃升了三个数量级。六方相表现出10(-3) S cm(-1)量级的高电导率。此外，利用Li-7核磁共振获得的相关时间，根据Nernst-Einstein方程计算出的电导率与测量的电导率非常一致。结论是六方相的导电性归因于Li超离子传导。 (C) 2007 年美国物理研究所。
The electrical conductivity of lithium borohydride (LiBH4) measured by the ac complex impedance method jumped by three orders of magnitude due to structural transition from orthorhombic to hexagonal at approximately 390 K. The hexagonal phase exhibited a high electrical conductivity of the order of 10(-3) S cm(-1). Furthermore, the conductivity calculated from the Nernst-Einstein equation using the correlation time obtained from Li-7 nuclear magnetic resonance was in good agreement with the measured electrical conductivity. It was concluded that the electrical conductivity in the hexagonal phase is due to the Li superionic conduction. (C) 2007 American Institute of Physics.