Meléndrez Manuel F, Medina Carlos, Solis-Pomar Francisco, Flores Paulo, Paulraj Mani, Pérez-Tijerina Eduardo
Advanced Nanocomposites Research Group (GINA), Faculty of Engineering, University of Concepcion, 270 Edmundo Larenas, Box 160-C, Concepcion, 4070409 Chile ; Hybrid Materials Laboratory (HML), Faculty of Engineering, University of Concepcion, 270 Edmundo Larenas, Box 160-C, Concepcion, 4070409 Chile ; Department of Materials Engineering (DIMAT), Faculty of Engineering, University of Concepcion, 270 Edmundo Larenas, Box 160-C, Concepcion, 4070409 Chile.
Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, San Nicolas de los Garza, Nuevo León 66451 Mexico.
Nanoscale Res Lett. 2015 Feb 6;10:48. doi: 10.1186/s11671-015-0774-x. eCollection 2015.
Silver nanowires (Ag-NWs) were obtained using microwave-assisted hydrothermal method (MAH). The main advantage of the method is its high NWs production which is greater than 90%. It is also easy, fast, and highly reproducible process. One of the drawbacks presented so far in the synthesis of nanostructures by polyol path is the high temperature used in the process, which is superior than the boiling point of solvent (ethylene glycol), and also its excessive reaction time. Here, Ag-NWs with diameters of 70 to 110 nm were synthesized in 5 min in large quantities. Results showed that dimensions and shape of nanowires were very susceptible to changes with reaction parameters. The reactor power and reactor fill capacity were important for the synthesis. It was found that the reaction time needs to be decreased because of the NWs which start to deform and break up due to significant increase in the pressure's system. Energy-dispersive X-ray spectroscopy and electron diffraction analysis (SAED) did not show corresponding phases of AgO. Some aspects about synthesis parameters which are related to the percent yield and size of nanowires are also discussed.
采用微波辅助水热法(MAH)制备了银纳米线(Ag-NWs)。该方法的主要优点是纳米线产量高,超过90%。这也是一个简单、快速且可高度重复的过程。到目前为止,多元醇法合成纳米结构存在的一个缺点是该过程中使用的温度较高,高于溶剂(乙二醇)的沸点,且反应时间过长。在此,在5分钟内大量合成了直径为70至110纳米的银纳米线。结果表明,纳米线的尺寸和形状极易随反应参数变化。反应器功率和反应器填充量对合成很重要。发现由于压力系统显著增加导致纳米线开始变形和断裂,反应时间需要缩短。能量色散X射线光谱和电子衍射分析(SAED)未显示出AgO的相应相。还讨论了与纳米线产率百分比和尺寸相关的一些合成参数方面的内容。