以钛酸丁酯为钛源,采用水热法合成了高纯度的TiO2(B)纳米线.用 X射线衍射(XRD),扫描电镜(SEM),透射电镜(TEM)以及激光拉曼光谱仪(Ra-man)对其晶体结构、形貌和纯度进行了表征与分析,并对其锂离子电池性能进行了测试.结果表明,通过该方法得到的一维 TiO2(B)纳米线纯度达到了93．2％.该材料表现出了优异的电化学性能,在0．2 C下首次放电比容量达254．8 mAh/g,且循环性能良好,100次循环后容量损失只有约7．84％.
The TiO2 (B)nanowires with high purity had been successfully synthesized by a facile hydrothermal route using tetrabutyl titanate as titanium source.The crystal structure,morphology and purity of nanowires were characterized and analyzed using X-ray diffraction (XRD),scanning electron microscopy (SEM),Trans-mission electron microscopy(TEM)and laser Raman spectroscopy (Raman)respectively,and their lithium-ion battery performance was also tested.The results indicate that the purity of the one-dimensional TiO2 (B) nanowires obtained by this method could reach to 93.2%.The obtained TiO2 (B)nanowires show excellent elec-trochemical properties,its first discharge specific capacity can get up to 254.8 mAh/g at 0.2 C with good cycle performance,the capacity loss after 100 cycles is about 7.84%.
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