TiTe_2纳米管的合成

Synthesis of TiTe_2 Nanotubes

采用高能球磨预处理Ti粉 ,再与Te粉进行固相热反应来制备TiTe2 .使用XRD ,SEM ,TEM和HRTEM对不同条件下的反应产物的结构及微观形貌进行了表征 .结果表明这种方法可以在较为简单的条件下 ,规模制备纯度较高的TiTe2 纳米管 .通过对比反应产物 ,发现球磨处理是控制纳米管生成的必要步骤 ,这可以归结为球磨处理对反应物微粒尺寸的影响 .

TiTe 2 is generated by solid thermal reaction of Te powder and ball-milled Ti powder. The structural and morphological features of the as-synthesized product have been thoroughly characterized by XRD, SEM, TEM and HRTEM. The results show that the present route provides an easy access to large-scale preparation of high purity TiTe 2 nanotubes. By comparing the as-synthesized samples, we can discover that ball-milling treatment is necessary to the formation of nanotubes owing to its effect on the dimension of reactant particles.