Syntheses, Structures, and Characterization of Quaternary Tellurites, Li3MTe4O11 (M = Al, Ga, and Fe)
- Authors
- Lu, Minfeng; Jo, Hongil; Oh, Seung-Jin; Lee, Suheon; Choi, Kwang-Yong; Yu, Yang; Ok, Kang Min
- Issue Date
- May-2017
- Publisher
- AMER CHEMICAL SOC
- Citation
- INORGANIC CHEMISTRY, v.56, no.10, pp 5873 - 5879
- Pages
- 7
- Journal Title
- INORGANIC CHEMISTRY
- Volume
- 56
- Number
- 10
- Start Page
- 5873
- End Page
- 5879
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/4445
- DOI
- 10.1021/acs.inorgchem.7b00530
- ISSN
- 0020-1669
1520-510X
- Abstract
- Three new quaternary lithium metal tellurites, Li3MTe4O11 (M = Al, Ga, and Fe), have been synthesized through hydrothermal and solid-state reactions by heating a mixture of LiOH center dot H2O, TeO2, and M2O3. The structures of the title compounds have been determined by single-crystal and powder X-ray diffraction. Li3MTe4O11 reveal three-dimensional (3D) frameworks that consist of MO6 octahedra, TeO3 trigonal pyramids, and TeO4 polyhedra. The variable coordination mode of Te4+ within the framework leads to the formation of 1D channels that host Li+ cations on both tetrahedral and octahedral sites. The bulk and grain boundary Li+ ion conductivities for a Li3FeTe4O11 pellet in open air are estimated to be 1.0 x 10(-4) and 2.7 x 10(-6) S cm(-1), respectively, at room temperature from the impedance profile analysis. A lower activation energy of 19.9 kJ mol(-1) is obtained for the system, which is similar to that of Li10GeP2S12 (24 kJ mol(-1)). Detailed characterizations such as thermal, spectroscopic, and magnetic properties for the reported materials are also reported.
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Collections - College of Natural Sciences > Department of Chemistry > 1. Journal Articles
- College of Natural Sciences > Department of Physics > 1. Journal Articles
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