ABSTRACT Flexible polyaniline/carbon fibres (PANI/CFs) nanocomposites with comb-shaped polyaniline (PANI) nanorods were fabricated by using a one-step pulse current approach. The morphology, chemical structure, crystalline structure and electrochemical performances of well-controlled PANI/CFs composites were characterised and evaluated by FE-SEM, FT-IR, Raman spectra, XRD and electrochemical working station. The electrochemical performance of comb-shaped PANI/CFs nanocomposites as supercapacitor electrodes was obtained by controlling the polymerisation time and types of current. The optimised polyaniline/carbon fibres from preparation with pulse current for 7 min (PANI/CFs-PC-7) composite showed good electrochemical performance with maximum specific capacitance of 323 F g−1 of sample mass at a current density loading of 1 A g−1, together with better rate capability, bendability and good cycling stability, which are essential in high-performance supercapacitor electrodes. In addition, the highly efficient and convenient approach paves the way to large-scale commercial applications of the flexible ordered nanocomposites.

中文翻译：

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脉冲电流电化学聚合的制备及其用于柔性超级电容器电极的有序梳状聚苯胺/碳纤维复合材料的性能

摘要 采用一步脉冲电流法制备了具有梳状聚苯胺 (PANI) 纳米棒的柔性聚苯胺/碳纤维 (PANI/CFs) 纳米复合材料。通过FE-SEM、FT-IR、拉曼光谱、XRD和电化学工作站对控制良好的PANI/CFs复合材料的形貌、化学结构、晶体结构和电化学性能进行了表征和评价。通过控制聚合时间和电流类型，获得了梳状 PANI/CFs 纳米复合材料作为超级电容器电极的电化学性能。用脉冲电流 7 分钟制备的优化聚苯胺/碳纤维（PANI/CFs-PC-7）复合材料显示出良好的电化学性能，在 1 A g 的电流密度负载下，样品质量的最大比电容为 323 F g-1 −1, 以及更好的倍率性能、弯曲性和良好的循环稳定性，这对于高性能超级电容器电极至关重要。此外，高效便捷的方法为柔性有序纳米复合材料的大规模商业应用铺平了道路。