Polyvinyl alcohol/surfactant-free single-walled carbon nanotube (PVA/SF-SWNT) nanocomposites were synthesized by a facile solution-cast technique. The effect of SF-SWNT on the structural, surface-morphological, mechanical, electrical, and electrochemical properties of the nanocomposite was studied. The surface morphology and Fourier Transform Infrared Spectroscopy demonstrate an increased degree of interaction between PVA and SF-SWNT resulting in improved mechanical strength of the nanocomposite. Incorporation of SF-SWNT was found to improve the DC electrical conductivity by almost five orders of magnitude. Furthermore, the effect of SWNT on the electrochemical properties of the nanocomposite was also studied. The PVA/SF-SWNT composite exhibits specific capacitance as high as 26.4 F g −1 at a current density 0.5 mA g −1 , which is four times higher than that of PVA (6.1 F g −1 ). The impedance spectroscopy analysis reveals that the incorporation of SW...

中文翻译：

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溶液流延法合成的固溶碳纳米管增强单壁碳纳米管增强聚乙烯醇纳米复合材料的电化学性能

通过简便的溶液浇铸技术合成了聚乙烯醇/无表面活性剂的单壁碳纳米管（PVA / SF-SWNT）纳米复合材料。研究了SF-SWNT对纳米复合材料的结构，表面形态，机械，电学和电化学性质的影响。表面形态和傅立叶变换红外光谱表明，PVA和SF-SWNT之间的相互作用程度增加，从而提高了纳米复合材料的机械强度。发现掺入SF-SWNT可将直流电导率提高近五个数量级。此外，还研究了SWNT对纳米复合材料电化学性能的影响。PVA / SF-SWNT复合材料在电流密度为0.5 mA g -1时显示出高达26.4 F g -1的比电容，这是PVA（6.1 F g -1）的四倍。阻抗谱分析表明，SW ...