| 熔融法制备纳米管Li-Ti-O化合物及其表征 |
| Preparation and Characterization of Nanotube Li-Ti-O by Molten Salt Method |
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| 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(198.6 m2·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；在空气中此纳米管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。 |
| 关键词: 纳米管钛酸钠 纳米管Li-Ti-O化合物 熔融法 Li电极材料 |
| 基金项目: |
| Abstract: Nanotube Li-Ti-O compound with high surface(198.6 m2·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 Li1s binding energy in the two crystal phases. In ambient air it adsorbs water easily. The chemical adsorped water is difficult to remove below 400 ℃。 |
| Keywords: nanotube Na2Ti2O5·H2O nanotube Li-Ti-O compound molten method Li-electrode material |
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| 裴先茹,王晓冬,张顺利,张经纬,杨建军,金振声.熔融法制备纳米管Li-Ti-O化合物及其表征[J].无机化学学报,2006,22(12):2135-2140. |
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