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首页> 外文期刊>Journal of Applied Polymer Science >A facile synthesis of a novel three-phase nanocomposite: Single-wall carbon nanotube/silver nanohybrid fibers embedded in sulfonated polyaniline
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A facile synthesis of a novel three-phase nanocomposite: Single-wall carbon nanotube/silver nanohybrid fibers embedded in sulfonated polyaniline

机译：新型三相纳米复合材料的简便合成：嵌入磺化聚苯胺中的单壁碳纳米管/银纳米杂化纤维

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摘要

A three-phase water-soluble nanocomposite of single wall carbon nanotube/silver nanoparticle hybrid fibers embedded in sulfonated polyaniline has been synthesized by a simple chemical solution mixing process. The nanocomposite has been characterized by high resolution electron microscopy, X-ray diffractometry, FTIR spectroscopy, Raman spectroscopy, and thermogravimetric analysis. Optical and electrical characteristics of the nanocomposite have been determined by UV-vis absorption spectroscopy, photoluminescence spectroscopy, and four-probe electrical conductivity measurement. A surface plasmon absorption band obtained around 460 nm indicates the presence of silver nanoparticles in the composite. The optical band gap calculation for sulfonated polyaniline vis-a-vis the nanocomposite supported the conductivity measurement. Over 1300 times increase in DC electrical conductivity has been observed for the three-phase nanocomposite, with a filler loading of 20 wt %, at 306 K. This observation could be explained by Mott's variable range hopping model considering a three-dimensional conduction. Such a nanocomposite has immense potential for use as a cathode material in lithium-ion batteries and supercapacitors. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41692.
机译：通过简单的化学溶液混合工艺合成了嵌入磺化聚苯胺中的单壁碳纳米管/银纳米颗粒杂化纤维的三相水溶性纳米复合材料。纳米复合材料的特征在于高分辨率电子显微镜，X射线衍射，FTIR光谱，拉曼光谱和热重分析。纳米复合材料的光学和电学特性已经通过紫外可见吸收光谱，光致发光光谱和四探针电导率测量来确定。在约460 nm处获得的表面等离激元吸收带表明复合物中存在银纳米颗粒。相对于纳米复合材料，磺化聚苯胺的光学带隙计算支持了电导率测量。对于三相纳米复合材料，在306 K时填充量为20 wt％的情况下，直流电导率增加了1300倍以上。这一观察结果可以由考虑了三维导电性的Mott可变范围跳跃模型来解释。这种纳米复合材料具有巨大的潜力，可用作锂离子电池和超级电容器中的阴极材料。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41692。

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