Preparation of Self-Assembled Silver Nanoparticle Ink from Nano-Emulsion
Preparation of Self-Assembled Silver Nanoparticle Ink from Nano-Emulsion
复制标题
纳米乳液制备自组装纳米银油墨
DOI：
10.11413/nig.55.105
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
江前 敏晴
中科院分区：
文献类型：
--
作者：
胡ドン皓;小川 和義;梶山 幹夫;江前 敏晴
以硝酸银乳液为原料，制备了分散性好、纯度高的自组装银纳米粒子（AgNP）墨水。该乳液通过将AgNO 3水溶液与石蜡溶液混合来制备，石蜡溶液通过混合吐温80和司盘80来制备。该油墨在较低温度下保持乳液状态;然而，在烧结过程后，它产生AgNP并在纳米级（直径为10.23-14.40 nm）下显示出高导电性和稳定性。在整个过程中，吐温80充当表面活性剂、还原剂和稳定剂。它经历自氧化，在此期间通过夺氢在醚氧的α-位形成自由基。水含量越少、表面活性剂比例越大、AgNO 3浓度越高，所得乳胶粒的平均粒径越小。利用热重分析（TGA）、傅里叶变换红外（FTIR）光谱、X射线衍射（XRD）、动态光散射（DLS）、紫外-可见（UV-VIS）光谱和透射电子显微镜（TEM）对合成的AgNPs进行表征。
A well-dispersed self-assembled silver nanoparticle (AgNP) ink of high purity was synthesized from the AgNO3 emulsion. This emulsion was prepared by blending AgNO3 aqueous solution with paraffin solution, produced by mixing Tween 80 and Span 80. The ink maintains the emulsion state at lower temperatures; however, after a sintering procedure, it produces AgNPs and shows high conductivity and stability at nanoscale (diameter of 10.23-14.40 nm). During the entire procedure, Tween 80 acts as a surfactant, reductant, and stabilizer. It undergoes autoxidation, during which a free radical is formed in ether oxygen's α-position by hydrogen abstraction. Smaller mean sizes of the emulsion particles can be obtained with lesser water content, higher ratio of surfactant, and higher concentration of AgNO3 aqueous solution. Thermogravimetric analysis (TGA), Fourier transform infrared (FTIR) spectrum, X-ray diffraction (XRD), dynamic light scattering (DLS), ultraviolet-visible (UV-VIS) spectrum, and transmission electron microscopy (TEM) were utilized for the characterization of synthesized AgNPs.