Preparation and characterization of nanotube Li-Ti-O by molten salt method |
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Authors: | Xianru Pei Xiaodong Wang Shunli Zhang Jingwei Zhang Jianjun Yang Zhensheng Jin |
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Institution: | (1) Laboratory of Special Functional Materials, Henan University, Kaifeng, 475001, China |
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Abstract: | Nanotube Li-Ti-O compound with high surface (198.6 m2·g−1) was prepared by a method involving the treatment of nanotube Na2Ti2O5·H2O in molten LiNO3 and characterization by means of transmission electron microscopy (TEM), energy-dispersive spectra (EDS), X-ray diffraction
(XRD), X-ray photoelectron spectroscopy (XPS), and thermogravimetry-differential thermal analysis (TG/DTG). Results show that
the nanotube Li-Ti-O compound prepared by this method involves two crystal phases: spinel Li2Ti2O4 and anatase LixTiO2 (x < 0.1). Li+ exhibits different Li1s binding energy in the two crystal phases. In ambient air, the Li-Ti-O compound adsorbs water easily,
and the chemically adsorbed water is difficult to remove below 400°C.
Translated from Chinese Journal of Inorganic Chemistry, 2006, 22(12): 2135–2139 译自: 无机化学学报] |
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Keywords: | nanotube Na2Ti2O5·H2O nanotube Li-Ti-O compound molten method Li-electrode material |
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