Sealed-tube synthesis and phase diagram of Li{sub x}TiS{sub 2} (0 ≤ x ≤1)

Journal Article · Thu Jan 15 00:00:00 EST 2015 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2014.10.045· OSTI ID:22420785

Zhang, Ziping ^[1]; Dong, Cheng ^[2]; Guan, Chunlong ^[1]; Yang, Lihong ^[2]; Luo, Xiaoning ^[1]; Li, Aolei ^[2]

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1. School of Material Science and Engineering, Henan University of Technology, Zhengzhou 450007 (China)
2. National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Science, Beijing 100190 (China)

Graphical abstract: We reported a new method to prepare Li{sub x}TiS{sub 2} (0 ≤ x ≤ 1) at 600 °C in sealed tube using Li{sub 2}S aslithium source. A schematic phase diagram of the Li{sub x}TiS{sub 2} system has been constructed based on the DTA and XRD data. - Abstract: We reported a new method to prepare Li{sub x}TiS{sub 2} (0 ≤ x ≤ 1) at 600 °C in sealed tube using Li{sub 2}S as lithium source. The Li{sub x}TiS{sub 2} samples were characterized by powder X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, and differential thermal analysis. The variations of the lattice parameters with lithium content x in Li{sub x}TiS{sub 2} were determined by X-ray powder diffraction analysis for both 1T and 3R phases. The phase transition between low-temperature 1T phase and high-temperature 3R phase was confirmed by the powder X-ray diffraction analysis. Based on the differential thermal analysis and X-ray diffraction results, a schematic phase diagram of the Li{sub x}TiS{sub 2} system has been constructed, providing a guideline to synthesize Li{sub x}TiS{sub 2} in 1T structure or 3R structure.

• OSTI ID: 22420785
• Journal Information: Materials Research Bulletin, Vol. 61; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CONCENTRATION RATIO
CRYSTAL STRUCTURE
DIFFERENTIAL THERMAL ANALYSIS
LATTICE PARAMETERS
LITHIUM SULFIDES
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
POWDERS
SCANNING ELECTRON MICROSCOPY
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMAL GRAVIMETRIC ANALYSIS
TITANIUM SULFIDES
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY