中文摘要：

在熔融的LiNO3中，以纳米管钛酸钠为母体进行锂-钠离子交换，制得了具有高表面积的纳米管Li—Ti-O化合物（198．6m^2·g^-1）。XRD、XPS、TG表征结果表明：此纳米管Li—Ti-O化合物包含两种晶型物质，即立方尖晶石结构的Li2Ti2O4和锐钛矿结构的LixTiO2（x〈0．1）]，Li^＋在这两种晶型物质中的结合能不同；在空气巾此纳米管Li—Ti-O化合物具有较强的吸水性．化学吸附水在高于400℃时才开始脱附。

英文摘要：

Nanotube Li-Ti-O compound with high surface （198.6 m^2·g^-1） was prepared by the method of treating nanotube Na2Ti2O5·H2O in molten LiNO3 and characterized by means of TEM, EDS, XRD XPS and TG. The results show that the nanotube Li-Ti-O compound prepared by this method involves two crystal phases. One is spinel Li2Ti2O4 and another is anatase LixTiO2 （x〈0.1）. Li^＋ exhibits different Lils binding energy in the two crystal phases. In ambient air it adsorbs water easily. The chemical adsorped water is difficult to remove below 400 ℃.