Facile Synthesis of Urchin-Like Selenium Nanostructures in a Buffer System at Ambient Conditions
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- 作者：Shan Fan ; Gang Li ; Xu Zhang ; Hongchen Mu ; Baibin Zhou ; Lihong Gong ; Haiyan Liang ; Lingji Guo ; Jun Guo
- 刊名：Crystal Growth & Design
- 出版年：2009
- 出版时间：January 7, 2009
- 年：2009
- 卷：9
- 期：1
- 页码：95-99
- 全文大小：302K
- 年卷期：v.9,no.1(January 7, 2009)
- ISSN：1528-7505
文摘
A kind of interesting urchin-like selenium nanostructure consisting of Se nanorods with a diameter of 100 nm and a length of 4−5 μm was synthesized based on a facile dismutation reaction in a buffer system at ambient conditions. In the synthesis process, cetyltrimethylammonium bromide (CTAB) was used as a shape-directing agent. It is found that the reaction time, the buffer system, and the amount of ethanol have an important influence on the formation of this kind of morphology besides CTAB. The obtained samples were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), selected area electron diffraction (SAED), and transmission electron microscopy (TEM). The formation mechanism of the urchin-like Se nanostructure has been proposed.