A Green Chemical Approach to the Synthesis of Tellurium Nanowires
详细信息 查看全文
- 作者：Qingyi Lu ; Feng Gao ; and Sridhar Komarneni
- 刊名：Langmuir
- 出版年：2005
- 出版时间：June 21, 2005
- 年：2005
- 卷：21
- 期：13
- 页码：6002 - 6005
- 全文大小：287K
- 年卷期：v.21,no.13(June 21, 2005)
- ISSN：1520-5827
文摘
Starch, an economical and safe carbohydrate, has been found to be not only an effective reducing agentbut also a new morphology-directing agent for the synthesis of tellurium nanowires using commercialH2TeO4 precursor. The obtained tellurium nanowires are of single-crystal in nature, with an averagediameter of ~25 nm and length up to 10 
m. A possible synthetic mechanism involves the chain-shapedbioorganic molecule acting as a template for the one-dimensional growth of inorganic tellurium. The effectsof different chain-shaped structures and concentrations of biomolecules on the nanowire morphology havebeen investigated and different one-dimensional structures, including thick rods, short nanowires, bunchednanowires, and assembled spikelet structures, have been fabricated. These experimental results havebeen found to be useful in substantiating the proposed synthetic mechanism.
m. A possible synthetic mechanism involves the chain-shapedbioorganic molecule acting as a template for the one-dimensional growth of inorganic tellurium. The effectsof different chain-shaped structures and concentrations of biomolecules on the nanowire morphology havebeen investigated and different one-dimensional structures, including thick rods, short nanowires, bunchednanowires, and assembled spikelet structures, have been fabricated. These experimental results havebeen found to be useful in substantiating the proposed synthetic mechanism.