Sodium-ion conduction in complex hydrides NaAlH4 and Na3AlH6

被引：43

作者：

Oguchi, H. ^{[1
,2
]}

Matsuo, M. ^{[1
]}

Kuronnoto, S. ^{[1
]}

Kuwano, H. ^{[2
]}

Orimo, S. ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2012年 / 111卷 / 03期

关键词：

BETA-ALUMINA; ELECTROLYTES; DIFFRACTION; DEPENDENCE; NEUTRON; LITHIUM;

D O I：

10.1063/1.3681362

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied sodium-ion conduction in complex hydrides NaAlH4 and Na3AlH6. The electrical conductivities of these complex hydrides were studied using ac impedance measurements at temperatures up to 363 K for NaAlH4 and 433 K for Na3AlH6. Nyquist plots obtained by the measurements indicated the sodium-ion conduction. Also, dc measurements showed that sodium-ion transference numbers of NaAlH4 and Na3AlH6 were almost unity. Na3AlH6 exhibited the sodium-ion conduction of 4.1 x 10(-4) S/cm at 433 K. This study will open up research on complex hydrides as solid-state sodium-ion conductors. 2012 American Institute of Physics. [doi:10.1063/1.3681362]

引用

页数：3

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