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聚乙二醇辅助水热法组装锑纳米片为三维纳米超结构研究 被引量:1

PEG-Assisted Hydrothermal Assembly of Antimony Nanosheets into 3D Superstructures
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摘要 利用聚乙二醇(PEG)辅助下的水热还原反应,在较低温度下组装了一系列基于一维/准一维片层状纳米锑的三维超结构,如Sb纳米条构成的空心球,Sb纳米片构成的花朵状超结构,放射状Sb亚微米棒束等.用粉末X射线衍射(PXRD)、扫描电子显微镜(SEM)、场发射扫描电子显微镜(FESEM)等手段对产物进行了表征.通过选取合适的水热体系和表面活性剂,可以实现所得三维纳米超结构形貌的控制.在对不同反应条件下产物形貌进行分析的基础上,提出了可能的组装机理,预计在该机理的指导下,通过设计恰当的反应参数,这种表面活性剂辅助水热法也能用于合成其他层状无机材料的复杂纳米结构. A series of antimony 3D superstructures, including hollow spheres composed of Sb nanostrips, flower-like architecture composed of Sb nanoflakes, radial Sb sub-micrometer rod bundles, are assembled via a surfactant-assisted hydrothermal reduction reaction. X-ray .powder diffraction (PXRD), scanning electron microscopy (SEM) and field emission SEM (FESEM) are employed to characterize the products. The controlled morphology can be readily achieved through selecting the suitable hydrothermal system and surfactants. Based on discussion of some influencing factors on the morphology of the final products, the formation mechanism for Sb 3D superstructures has been properly proposed. This surfactant-assisted hydrothermal pathway may also be applicable to the fabrication of 3D nanostructures of other layered inorganic materials by choosing the appropriate reaction parameters.
出处 《河南师范大学学报(自然科学版)》 CAS CSCD 北大核心 2009年第2期165-167,182,共4页 Journal of Henan Normal University(Natural Science Edition)
基金 河南工业大学博士基金(2007BS057)
关键词 三维纳米超结构 水热 可控组装 antimony 3D superstructures hydrothermal controlled assembly
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参考文献13

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