Synthesis and lithium fast-ion conductivity of a new complex hydride Li3(NH2)2I with double-layered structure

Motoaki Matsuo; Toyoto Sato; Yohei Miura; Hiroyuki Oguchi; Yu Zhou; Hideki Maekawa; Hitoshi Takamura; Shin Ichi Orimo

doi:10.1021/cm1006857

Synthesis and lithium fast-ion conductivity of a new complex hydride Li₃(NH₂)₂I with double-layered structure

Motoaki Matsuo, Toyoto Sato, Yohei Miura, Hiroyuki Oguchi, Yu Zhou, Hideki Maekawa, Hitoshi Takamura, Shin Ichi Orimo

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

32 Citations (Scopus)

Abstract

We have succeeded in synthesizing the new complex hydride Li ₃(NH₂)₂I exhibiting lithium fast-ion conductivity. Structural analysis based on high-resolutionsynchrotron X-ray diffraction shows that Li₃(NH₃)_eI has the characteristic double-layered structure with a = 7.09109(5) Å, c=11.50958(10)Å, the space group P6₃mc (hexagonal), and Z = 4. Because of the characteristic structure, Li₃(NH₂) ₂I exhibits fast-ion conductivity of 1 × 10-5 S/cm at 296 K with a lithium ion transport number of almost unity, although the conductivities of the host materials Li(NH2) (3 × 10-9 S/cm) and LiI (3 × 10-8 S/cm) are very low.

Original language	English
Pages (from-to)	2702-2704
Number of pages	3
Journal	Chemistry of Materials
Volume	22
Issue number	9
DOIs	https://doi.org/10.1021/cm1006857
Publication status	Published - 2010 May 11
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Chemistry

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Synthesis and lithium fast-ion conductivity of a new complex hydride Li₃(NH₂)₂I with double-layered structure. / Matsuo, Motoaki; Sato, Toyoto; Miura, Yohei; Oguchi, Hiroyuki; Zhou, Yu; Maekawa, Hideki; Takamura, Hitoshi; Orimo, Shin Ichi.

In: Chemistry of Materials, Vol. 22, No. 9, 11.05.2010, p. 2702-2704.

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

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abstract = "We have succeeded in synthesizing the new complex hydride Li 3(NH2)2I exhibiting lithium fast-ion conductivity. Structural analysis based on high-resolutionsynchrotron X-ray diffraction shows that Li3(NH3)eI has the characteristic double-layered structure with a = 7.09109(5) {\AA}, c=11.50958(10){\AA}, the space group P63mc (hexagonal), and Z = 4. Because of the characteristic structure, Li3(NH2) 2I exhibits fast-ion conductivity of 1 × 10-5 S/cm at 296 K with a lithium ion transport number of almost unity, although the conductivities of the host materials Li(NH2) (3 × 10-9 S/cm) and LiI (3 × 10-8 S/cm) are very low.",

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AU - Matsuo, Motoaki

AU - Sato, Toyoto

AU - Miura, Yohei

AU - Oguchi, Hiroyuki

AU - Zhou, Yu

AU - Maekawa, Hideki

AU - Takamura, Hitoshi

AU - Orimo, Shin Ichi

PY - 2010/5/11

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