The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy

Mohammed Tareque Chowdhury; Reiji Takekawa; Yoshiki Iwai; Naoaki Kuwata; Junichi Kawamura

doi:10.1016/j.ssi.2013.10.022

The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy

Mohammed Tareque Chowdhury, Reiji Takekawa, Yoshiki Iwai, Naoaki Kuwata, Junichi Kawamura

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

80% and 93% Li β-alumina single crystals are prepared from Na β-alumina by ion exchange method. Temperature dependent T₁ relaxation data for both the samples indicates the presence of a local motion of Li ion in β-alumina crystal. T₁ relaxation data of ²³Na in Na β-alumina was also studied and compared with Li β-alumina. Temperature dependent quadrupole interaction was observed for ⁷Li in β-alumina crystal. A simple model suggested that, an out of plane position of Li ion may be possible with small energy imbalance which corresponds to the activation energy for local motion of Li ion. The T ₁ relaxation data and the quadrupole data also indicate that mixed alkali effect might be present in the microscopic scale.

Original language	English
Pages (from-to)	482-485
Number of pages	4
Journal	Solid State Ionics
Volume	262
DOIs	https://doi.org/10.1016/j.ssi.2013.10.022
Publication status	Published - 2014 Sep 1

Keywords

Ion exchange
Ionic conductivity
NMR spectroscopy
β-Alumina

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1016/j.ssi.2013.10.022

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title = "The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy",

abstract = "80% and 93% Li β-alumina single crystals are prepared from Na β-alumina by ion exchange method. Temperature dependent T1 relaxation data for both the samples indicates the presence of a local motion of Li ion in β-alumina crystal. T1 relaxation data of 23Na in Na β-alumina was also studied and compared with Li β-alumina. Temperature dependent quadrupole interaction was observed for 7Li in β-alumina crystal. A simple model suggested that, an out of plane position of Li ion may be possible with small energy imbalance which corresponds to the activation energy for local motion of Li ion. The T 1 relaxation data and the quadrupole data also indicate that mixed alkali effect might be present in the microscopic scale.",

keywords = "Ion exchange, Ionic conductivity, NMR spectroscopy, β-Alumina",

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T1 - The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy

AU - Chowdhury, Mohammed Tareque

AU - Takekawa, Reiji

AU - Iwai, Yoshiki

AU - Kuwata, Naoaki

AU - Kawamura, Junichi

PY - 2014/9/1

Y1 - 2014/9/1

N2 - 80% and 93% Li β-alumina single crystals are prepared from Na β-alumina by ion exchange method. Temperature dependent T1 relaxation data for both the samples indicates the presence of a local motion of Li ion in β-alumina crystal. T1 relaxation data of 23Na in Na β-alumina was also studied and compared with Li β-alumina. Temperature dependent quadrupole interaction was observed for 7Li in β-alumina crystal. A simple model suggested that, an out of plane position of Li ion may be possible with small energy imbalance which corresponds to the activation energy for local motion of Li ion. The T 1 relaxation data and the quadrupole data also indicate that mixed alkali effect might be present in the microscopic scale.

AB - 80% and 93% Li β-alumina single crystals are prepared from Na β-alumina by ion exchange method. Temperature dependent T1 relaxation data for both the samples indicates the presence of a local motion of Li ion in β-alumina crystal. T1 relaxation data of 23Na in Na β-alumina was also studied and compared with Li β-alumina. Temperature dependent quadrupole interaction was observed for 7Li in β-alumina crystal. A simple model suggested that, an out of plane position of Li ion may be possible with small energy imbalance which corresponds to the activation energy for local motion of Li ion. The T 1 relaxation data and the quadrupole data also indicate that mixed alkali effect might be present in the microscopic scale.

KW - Ion exchange

KW - Ionic conductivity

KW - NMR spectroscopy

KW - β-Alumina

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JO - Solid State Ionics

JF - Solid State Ionics

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ER -

The study of the lithium ion motion in β-alumina single crystal by NMR spectroscopy

Abstract

Keywords

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