银纳米线(AgNWs)因具有高导电性、高透光性及良好的耐弯曲柔性,已成为传统氧化铟锡(ITO)透明导电材料的替代品。采用液相多元醇还原法制备了不同规格的银纳米线,并通过SEM、UV-Vis、XRD等测试手段对制备的银纳米线进行了表征。结果表明,不同的制备参数可以获得颗粒状、短棒状、线状等不同形态的银产物。反应温度160℃,反应体系中聚乙烯吡咯烷(PVP)与AgNO3的摩尔比为2∶1,FeCl3的浓度保持在0.1～0.2mmol/L之间时,可以制备得到长度约30μm、直径约50nm的高纯度银纳米线。
Silver nanowires (AgNWs) are considered a promising alternative to traditional indium tin oxide (ITO) transparent conductive materials due to their high conductivity,high transparency,and excellent flexibility.In this study,we prepared AgNWs of different specifications using the liquid phase polyol reduction method,and characterized them using various testing methods including scanning electron microscopy (SEM),ultraviolet-visible spectroscopy (UV-Vis),and X-ray diffraction (XRD).The results demonstrated that by manipulating the preparation parameters,we could control the morphology of the AgNWs,resulting in the formation of particles,short rods,and wires with different shapes.We found that high purity AgNWs,with a length of approximately 30 μm,and a diameter of approximately 50 nm,could be obtained when the reaction temperature was 160℃,the PVP to AgNO3 molar ratio was 2∶1,and the FeCl3 concentration was 0.1-0.2mmol/L.
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基金资助
国家重点研发计划(2021YFB2601702)
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