Synthesis, structure, and ionic conductivity of Na5Li3Ti2S8

Fu Qiang Huang; Jiyong Yao; Zhanqiang Liu; Jianghua Yang; James A. Ibers

doi:10.1016/j.jssc.2008.01.023

Synthesis, structure, and ionic conductivity of Na₅Li₃Ti₂S₈

Fu Qiang Huang, Jiyong Yao, Zhanqiang Liu, Jianghua Yang, James A. Ibers^*

^*Corresponding author for this work

Chemistry

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

2 Scopus citations

Abstract

The compound Na₅Li₃Ti₂S₈ has been synthesized by the reaction of Ti with a Na/Li/S flux at 723 K. Na₅Li₃Ti₂S₈ crystallizes in a new structure type with four formula units in space group C2/c of the monoclinic system. The structure contains three crystallographically independent Na⁺ cations and two crystallographically independent Li⁺ cations. Na₅Li₃Ti₂S₈ possesses a channel structure that features two-dimensional _∞² [LiTiS₄^{3 -}] layers built from Li(1)S₄ and TiS₄ tetrahedra. The layers, which are stacked along c, comprise eight-membered rings and sixteen-membered rings. Na(3)⁺ cations are located between the eight-membered rings and Na(1)⁺, Na(2)⁺, and Li(2)⁺ cations are located between the sixteen-membered rings. These cations are each octahedrally coordinated by six S^2- anions. The ionic conductivity σ_T of Na₅Li₃Ti₂S₈ ranges from 8.8×10^-6 S/cm at 303 K to 3.8×10^-4 S/cm at 483 K. The activation energy E_a is 0.40 eV.

Original language	English (US)
Pages (from-to)	837-841
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	181
Issue number	4
DOIs	https://doi.org/10.1016/j.jssc.2008.01.023
State	Published - Apr 2008

Keywords

Channel structure
Ionic conductivity
Sodium lithium titanium sulfide
Synthesis
X-ray structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "Synthesis, structure, and ionic conductivity of Na5Li3Ti2S8",

abstract = "The compound Na5Li3Ti2S8 has been synthesized by the reaction of Ti with a Na/Li/S flux at 723 K. Na5Li3Ti2S8 crystallizes in a new structure type with four formula units in space group C2/c of the monoclinic system. The structure contains three crystallographically independent Na+ cations and two crystallographically independent Li+ cations. Na5Li3Ti2S8 possesses a channel structure that features two-dimensional ∞2 [LiTiS43 -] layers built from Li(1)S4 and TiS4 tetrahedra. The layers, which are stacked along c, comprise eight-membered rings and sixteen-membered rings. Na(3)+ cations are located between the eight-membered rings and Na(1)+, Na(2)+, and Li(2)+ cations are located between the sixteen-membered rings. These cations are each octahedrally coordinated by six S2- anions. The ionic conductivity σT of Na5Li3Ti2S8 ranges from 8.8×10-6 S/cm at 303 K to 3.8×10-4 S/cm at 483 K. The activation energy Ea is 0.40 eV.",

keywords = "Channel structure, Ionic conductivity, Sodium lithium titanium sulfide, Synthesis, X-ray structure",

author = "Huang, {Fu Qiang} and Jiyong Yao and Zhanqiang Liu and Jianghua Yang and Ibers, {James A.}",

note = "Funding Information: This research was supported by the Science and Technology Commission of Shanghai Municipality (Grant no. 05JC14080). Use was made of the Central Facilities supported by the MRSEC program of the National Science Foundation (DMR05-20513) at the Materials Research Center of Northwestern University.",

year = "2008",

month = apr,

doi = "10.1016/j.jssc.2008.01.023",

language = "English (US)",

volume = "181",

pages = "837--841",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

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T1 - Synthesis, structure, and ionic conductivity of Na5Li3Ti2S8

AU - Huang, Fu Qiang

AU - Yao, Jiyong

AU - Liu, Zhanqiang

AU - Yang, Jianghua

AU - Ibers, James A.

N1 - Funding Information: This research was supported by the Science and Technology Commission of Shanghai Municipality (Grant no. 05JC14080). Use was made of the Central Facilities supported by the MRSEC program of the National Science Foundation (DMR05-20513) at the Materials Research Center of Northwestern University.

PY - 2008/4

Y1 - 2008/4

N2 - The compound Na5Li3Ti2S8 has been synthesized by the reaction of Ti with a Na/Li/S flux at 723 K. Na5Li3Ti2S8 crystallizes in a new structure type with four formula units in space group C2/c of the monoclinic system. The structure contains three crystallographically independent Na+ cations and two crystallographically independent Li+ cations. Na5Li3Ti2S8 possesses a channel structure that features two-dimensional ∞2 [LiTiS43 -] layers built from Li(1)S4 and TiS4 tetrahedra. The layers, which are stacked along c, comprise eight-membered rings and sixteen-membered rings. Na(3)+ cations are located between the eight-membered rings and Na(1)+, Na(2)+, and Li(2)+ cations are located between the sixteen-membered rings. These cations are each octahedrally coordinated by six S2- anions. The ionic conductivity σT of Na5Li3Ti2S8 ranges from 8.8×10-6 S/cm at 303 K to 3.8×10-4 S/cm at 483 K. The activation energy Ea is 0.40 eV.

AB - The compound Na5Li3Ti2S8 has been synthesized by the reaction of Ti with a Na/Li/S flux at 723 K. Na5Li3Ti2S8 crystallizes in a new structure type with four formula units in space group C2/c of the monoclinic system. The structure contains three crystallographically independent Na+ cations and two crystallographically independent Li+ cations. Na5Li3Ti2S8 possesses a channel structure that features two-dimensional ∞2 [LiTiS43 -] layers built from Li(1)S4 and TiS4 tetrahedra. The layers, which are stacked along c, comprise eight-membered rings and sixteen-membered rings. Na(3)+ cations are located between the eight-membered rings and Na(1)+, Na(2)+, and Li(2)+ cations are located between the sixteen-membered rings. These cations are each octahedrally coordinated by six S2- anions. The ionic conductivity σT of Na5Li3Ti2S8 ranges from 8.8×10-6 S/cm at 303 K to 3.8×10-4 S/cm at 483 K. The activation energy Ea is 0.40 eV.

KW - Channel structure

KW - Ionic conductivity

KW - Sodium lithium titanium sulfide

KW - Synthesis

KW - X-ray structure

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