Study on the effect of surfactants on morphologies of trigonal selenium in microfluidic reactor
Study on the effect of surfactants on morphologies of trigonal selenium in microfluidic reactor
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DOI：
10.1016/j.materresbull.2009.10.001
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发表时间：
2010-02
影响因子：
5.4
通讯作者：
Tian Bian;Xue-feng Yin;Jie Fan;Jin-hua Liu
中科院分区：
文献类型：
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作者：
Tian Bian;Xue-feng Yin;Jie Fan;Jin-hua Liu
在两步微流控系统中研究了表面活性剂对三角形硒（t-Se）亚微结构形貌的影响.该系统由制备球形非晶硒（a-Se）胶体的玻璃微芯片和在超声作用下将a-Se转移到t-Se种子中的聚甲基丙烯酸甲酯微芯片组成.含亚硒酸的表面活性剂和肼溶液通过玻璃微流控芯片的两个入口递送。通过简单地改变共存表面活性剂的种类，得到了亚微米级的t-Se棒、线和管。采用X射线粉末衍射（XRD）、拉曼光谱、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和选区电子衍射（SAED）对产物进行了表征。
The influence of the surfactants on the morphologies of trigonal selenium (t-Se) submicrostructures was studied in a two-step microfluidic system, which is composed of a glass microchip for preparing spherical amorphous selenium (a-Se) colloids coupled with a poly(methyl methacrylate) microchip for transferring a-Se into its t-Se seeds under sonication. The selenious acid containing surfactants and hydrazine solutions were delivered through the two-inlets of the glass microfluidic chip. Submicro-rods, -wires as well as -tubes of t-Se were obtained by simply varying the coexisted surfactants. The as-synthesized products were characterized by powder X-ray diffraction (XRD), Raman spectrum, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and selected-area electron diffraction (SAED).