Crystal structure of advanced lithium titanate with lithium oxide additives
Crystal structure of advanced lithium titanate with lithium oxide additives
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DOI：
10.1016/j.jnucmat.2008.12.289
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发表时间：
2009-04
影响因子：
3.1
通讯作者：
T. Hoshino;K. Sasaki;K. Tsuchiya;K. Hayashi;A. Suzuki;T. Hashimoto;T. Terai
中科院分区：
文献类型：
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作者：
T. Hoshino;K. Sasaki;K. Tsuchiya;K. Hayashi;A. Suzuki;T. Hashimoto;T. Terai
Li2TiO3 是用于聚变反应堆的固体增殖材料中最有前途的候选材料之一。然而，我们发现在与氢气混合的吹扫气中，Li2TiO3 的质量随着时间的推移而减少。这种质量变化表明样品的氧含量下降，表明从 Ti4+ 变为 Ti3+。本文通过X射线衍射(XRD)和热重分析对添加Li2O的Li2TiO3的晶体结构和非化学计量进行了广泛的研究。在本研究中使用的Li2TiO3样品中，LiO-C2H5或LiO-i-C3H7和Ti(O-i-C3H7)4以对应于Li2O/TiO2摩尔比为2.00或1.00的比例混合。在热重分析中，由于锂缺乏，该样品的质量随着时间的推移而减少，但没有表明存在氧缺乏。
Li2TiO3is one of the most promising candidates among solid breeder materials proposed for fusion reactors. However, the mass of Li2TiO3was found to decrease with time in the sweep gas mixed with hydrogen. This mass change indicates that the oxygen content of the sample decreased, suggesting the change from Ti4+to Ti3+. In the present paper, the crystal structure and the non-stoichiometry of Li2TiO3added with Li2O have been extensively investigated by means of X-ray diffraction (XRD) and thermogravimetry. In the case of the Li2TiO3samples used in the present study, LiO–C2H5or LiO–i–C3H7and Ti(O–i–C3H7)4were mixed in the proportion corresponding to the molar ratio Li2O/TiO2of either 2.00 or 1.00. In thermogravimetry, the mass of this sample decreased with time due to lithium deficiency, where no presence of oxygen deficiency was indicated.