水热法制备高长径比银纳米线及其影响因素研究

发布时间：2018-06-01 02:51

本文选题：银纳米线 + 水热法　；参考：《燕山大学学报》2017年04期

【摘要】：采用水热法以AgCl为胶体、利用PVP作为还原剂及表面活性剂,成功合成了产量高、形貌尺寸均匀、高长径比的Ag纳米线。运用X射线粉末衍射(XRD)、扫描电镜(SEM)、紫外-可见光谱(DRS)对样品进行了表征,结果表明,产物为具有面心立方结构的单质银,结晶度高,银线平均长度60~110μm、平均直径为20~60 nm,长径比大于1 000。同时探讨了NaCl物质的量、PVP物质的量、反应温度、反应时间对样品形貌尺寸的影响,得到了制备高长径比银纳米线的最佳反应条件,并阐述了高长径比银纳米线的生长机制。
[Abstract]:Using AgCl as colloid and PVP as reductant and surfactant, Ag nanowires with high yield, uniform morphology and high aspect ratio were successfully synthesized by hydrothermal method. The samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis spectroscopy (DRS). The results showed that the product was a simple silver with face-centered cubic structure and high crystallinity. The average length of silver wire is 60 ~ 110 渭 m, the average diameter is 20 ~ 60 nm and the aspect ratio is more than 1 000. At the same time, the effects of the amount of NaCl material, reaction temperature and reaction time on the morphology and size of the sample were discussed. The optimum reaction conditions for the preparation of silver nanowires with high aspect ratio were obtained, and the growth mechanism of silver nanowires with high aspect ratio was described.
【作者单位】：蚌埠玻璃工业设计研究院;浮法玻璃新技术国家重点实验室;
【基金】：国家重点研发计划资助项目(2016YFB0303700) 安徽省科技重大专项计划项目(15czz02004) 硅酸盐建筑材料国家重点实验室(武汉理工大学)开放基金项目(SYSJJ2017-14)
【分类号】：TB383.1

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