期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 24, 期 39, 页码 9765-9768出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201801611
关键词
bismuth telluride; figure of merit; green chemistry; nanostructures; thermoelectric properties
资金
- National Natural Science Foundation of China [21771173, 51372242]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2011176]
- Chinese Academy of Sciences-Commonwealth Scientific and Industrial Research Organization (CAS-CSIRO) [GJHZ1730]
Bi2Te3 hierarchical nanostrings have been synthesized through a solvothermal approach with the assistance of sucrose. The hierarchical Bi2Te3 was supposed to be fabricated through a self-assembly process. Te nanorods first emerge with the reduction of TeO32- followed by heterogeneous nucleation of Bi2Te3 nanoplates on the surface and tips of Te nanorods. Te nanorods further transform into Bi2Te3 nanorods simultaneously with the nanoplates' growth leading to a hierarchical structure. By controlling the reaction kinetics by adding different amount of ethylene glycol, the length of nanorods and the number of nanoplates could be tailored. The use of sucrose is vital to the formation of hierarchical structure because it not only serves as a template for the well-defined growth of Te nanorods but also promotes the heterogeneous nucleation of Bi2Te3 in the self-assembly process. The Bi2Te3 nanomaterial shows a moderate thermoelectric performance because of its hierarchical structure. This study shows a promising way to synthesize Bi2Te3-based nanostructures through environmental friendly approach.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据