LiSbO2: Synthesis, Structure, Stability, and Lithium-Ion Conductivity

Benjamin De Laune; RD Bayliss; Colin Greaves

doi:10.1021/ic201183e

LiSbO2: Synthesis, Structure, Stability, and Lithium-Ion Conductivity

Benjamin De Laune, RD Bayliss, Colin Greaves

Chemistry

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4 Citations (Scopus)

Abstract

LiSbO2 has been synthesized using a ceramic method involving evacuated quartz tubes to ensure stoichiometry. Its structure [monoclinic, P2(1)/c; a = 4.8550(3) angstrom, b = 17.857(1) angstrom, c = 5.5771(3) angstrom; beta = 90.061(6)degrees] has been determined using X-ray and neutron diffraction and refined on the basis of neutron data. The structure is significantly different from that of LiBiO2 and contains chains of corner-linked SbO3 trigonal pyramids, which provide a framework for the tetrahedral coordination of Li+ ions. A layer structure results in which the Li sites are located in planes perpendicular to [010]. LiSbO2 is stable in air up to ca. 400 degrees C, but at higher temperatures, oxidation to LiSbO3 occurs as a two-stage process, with evidence for a metastable, intermediate LiSbO2.5 phase presented. The Li+-ion conductivity, measured using alternating-current impedance spectroscopy, is similar to that of LiBiO2, with a value of ca. 10(-6) S cm(-1) at 300 degrees C.

Original language	English
Pages (from-to)	7880-7885
Number of pages	6
Journal	Inorganic Chemistry
Volume	50
Issue number	16
DOIs	https://doi.org/10.1021/ic201183e
Publication status	Published - 1 Aug 2011

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@article{c092d581e3084728a46374c59541b549,

title = "LiSbO2: Synthesis, Structure, Stability, and Lithium-Ion Conductivity",

abstract = "LiSbO2 has been synthesized using a ceramic method involving evacuated quartz tubes to ensure stoichiometry. Its structure [monoclinic, P2(1)/c; a = 4.8550(3) angstrom, b = 17.857(1) angstrom, c = 5.5771(3) angstrom; beta = 90.061(6)degrees] has been determined using X-ray and neutron diffraction and refined on the basis of neutron data. The structure is significantly different from that of LiBiO2 and contains chains of corner-linked SbO3 trigonal pyramids, which provide a framework for the tetrahedral coordination of Li+ ions. A layer structure results in which the Li sites are located in planes perpendicular to [010]. LiSbO2 is stable in air up to ca. 400 degrees C, but at higher temperatures, oxidation to LiSbO3 occurs as a two-stage process, with evidence for a metastable, intermediate LiSbO2.5 phase presented. The Li+-ion conductivity, measured using alternating-current impedance spectroscopy, is similar to that of LiBiO2, with a value of ca. 10(-6) S cm(-1) at 300 degrees C.",

author = "{De Laune}, Benjamin and RD Bayliss and Colin Greaves",

year = "2011",

month = aug,

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doi = "10.1021/ic201183e",

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journal = "Inorganic Chemistry",

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TY - JOUR

T1 - LiSbO2: Synthesis, Structure, Stability, and Lithium-Ion Conductivity

AU - De Laune, Benjamin

AU - Bayliss, RD

AU - Greaves, Colin

PY - 2011/8/1

Y1 - 2011/8/1

N2 - LiSbO2 has been synthesized using a ceramic method involving evacuated quartz tubes to ensure stoichiometry. Its structure [monoclinic, P2(1)/c; a = 4.8550(3) angstrom, b = 17.857(1) angstrom, c = 5.5771(3) angstrom; beta = 90.061(6)degrees] has been determined using X-ray and neutron diffraction and refined on the basis of neutron data. The structure is significantly different from that of LiBiO2 and contains chains of corner-linked SbO3 trigonal pyramids, which provide a framework for the tetrahedral coordination of Li+ ions. A layer structure results in which the Li sites are located in planes perpendicular to [010]. LiSbO2 is stable in air up to ca. 400 degrees C, but at higher temperatures, oxidation to LiSbO3 occurs as a two-stage process, with evidence for a metastable, intermediate LiSbO2.5 phase presented. The Li+-ion conductivity, measured using alternating-current impedance spectroscopy, is similar to that of LiBiO2, with a value of ca. 10(-6) S cm(-1) at 300 degrees C.

AB - LiSbO2 has been synthesized using a ceramic method involving evacuated quartz tubes to ensure stoichiometry. Its structure [monoclinic, P2(1)/c; a = 4.8550(3) angstrom, b = 17.857(1) angstrom, c = 5.5771(3) angstrom; beta = 90.061(6)degrees] has been determined using X-ray and neutron diffraction and refined on the basis of neutron data. The structure is significantly different from that of LiBiO2 and contains chains of corner-linked SbO3 trigonal pyramids, which provide a framework for the tetrahedral coordination of Li+ ions. A layer structure results in which the Li sites are located in planes perpendicular to [010]. LiSbO2 is stable in air up to ca. 400 degrees C, but at higher temperatures, oxidation to LiSbO3 occurs as a two-stage process, with evidence for a metastable, intermediate LiSbO2.5 phase presented. The Li+-ion conductivity, measured using alternating-current impedance spectroscopy, is similar to that of LiBiO2, with a value of ca. 10(-6) S cm(-1) at 300 degrees C.

U2 - 10.1021/ic201183e

DO - 10.1021/ic201183e

M3 - Article

C2 - 21770410

SN - 1520-510X

VL - 50

SP - 7880

EP - 7885

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 16

ER -

LiSbO2: Synthesis, Structure, Stability, and Lithium-Ion Conductivity

Abstract

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