Morphology Controlled Synthesis of Nanostructured Bi2Te3

Bulletin of the Korean chemical society

Ha-young Kim¹  Wooyoung Lee¹  Mi-Kyung Han¹  Sung-Jin Kim¹  Hee Jin Kim¹ 

关键词: Bi2Te3;    Nanorod;    Nanoparticle;    Growth mechanism;    Thermoelectric material;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Nanostructured thermoelectric bismuth telluride (Bi2Te3) powders with various morphologies, such as nanoplates, nanorods, and nanotubes, were prepared by a hydrothermal method based on the reaction between BiCl3, Te, and sodium ethylenediaminetetraacetate (Na2-EDTA) at 150, 180, and 210 °C. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED). The effect of reaction temperature on the morphology of the Bi2Te3 particles was investigated, and the possible mechanism of morphology control was proposed.

【 授权许可】

Unknown