Solution-Phase Synthesis of Single-Crystal CuO Nanoribbons and Nanorings
Solution-Phase Synthesis of Single-Crystal CuO Nanoribbons and Nanorings
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DOI：
10.1021/cg060798j
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发表时间：
2007-04
影响因子：
3.8
通讯作者：
Xiaoqing Wang;Guangcheng Xi;S. Xiong;Yankuan Liu;Baojuan Xi;Weichao Yu;Y. Qian
中科院分区：
文献类型：
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作者：
Xiaoqing Wang;Guangcheng Xi;S. Xiong;Yankuan Liu;Baojuan Xi;Weichao Yu;Y. Qian
开发了一种溶液相法合成宽度为10−80 nm，厚度为5−20 nm，长度从几百纳米到几微米的单晶CuO纳米带，以及直径为100−300 nm的纳米环。用十二烷基苯磺酸钠(SDBS)与CuCl2和NaOH溶液反应制备了CuO纳米带和纳米环。用粉末X射线衍射仪、透射电子显微镜和高分辨电子显微镜对合成的产物进行了表征，结果表明，CuO纳米带和纳米环具有单晶单斜晶型结构，纳米环是封闭的，但不是纳米带两端的简单叠加。在电子显微镜观察的基础上，纳米带和纳米环的形成过程可分为两个阶段：最初的纳米薄片由于表面活性剂分子的布朗运动而分裂成纳米带，然后这些纳米带在表面活性物质的作用下形成。
A solution-phase route has been developed for the synthesis of single-crystal CuO nanoribbons with widths of 10−80 nm, thicknesses of 5−20 nm, and lengths ranging from several hundred nanometers to several micrometers and for nanorings with diameters of 100−300 nm. The CuO nanoribbons and nanorings were fabricated by the reaction of CuCl2 and NaOH solutions with sodium dodecyl benzenesulfonate (SDBS). The as-synthesized products were characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM), revealing that CuO nanoribbons and nanorings had single-crystal monoclinic structures and nanorings were closed but were not the simple superposition of two ends of the nanoribbons. On the basis of TEM observations, the formation processes of nanoribbons and nanorings can be interpreted by two stages: initial nanoflakes split into nanoribbons due to the Brownian movement of surfactant molecules, and then these nanoribbons that...