Abstract We have explored facile synthetic approach to fabricate free-standing hybrid mat based on nanostructured polyaniline (PANi) and carbon nanofibre (CNF) mat for binder-free supercapacitor electrode material by taking the merit of pseduocapacitance of PANi nanofibres and double layer capacitance of CNFs. The results of different spectroscopic analyses indicate successful growth of PANi on CNF surfaces with non-bonding interactions between them. The PANi/CNF hybrid with a core-shell structure, in which PANi nanofibers were grown on the surfaces of CNFs, was observed in the morphological analysis. The PANi/CNF hybrid mat-based electrode demonstrated a maximum gravimetric capacitance of 493.75 F/g at 1 mA/cm2 with excellent cycling stability. The PANi/CNF hybrid showed an energy density of 68.6 Wh/kg, while the energy density retained to 32.2 Wh/kg at 8.3 kW/kg. The above investigation demonstrates a step forward to design and fabricate flexible, high energy density and low-cost supercapacitor devices.

中文翻译：

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用于柔性电化学超级电容器的聚苯胺纳米纤维装饰的碳纳米纤维混合垫

摘要 我们利用PANi纳米纤维的伪电容和CNF的双层电容的优点，探索了一种简便的合成方法，用于制造基于纳米结构聚苯胺（PANi）和碳纳米纤维（CNF）垫的无粘合剂超级电容器电极材料的自立式混合垫。 . 不同光谱分析的结果表明，PANi 在 CNF 表面上成功生长，它们之间没有键合相互作用。在形态分析中观察到具有核壳结构的PANi/CNF杂化物，其中PANi纳米纤维生长在CNFs的表面上。PANi/CNF 混合垫基电极在 1 mA/cm2 下的最大重量电容为 493.75 F/g，具有出色的循环稳定性。PANi/CNF 混合体的能量密度为 68.6 Wh/kg，而能量密度保持在 32。2 Wh/kg 在 8.3 kW/kg。上述研究表明，在设计和制造柔性、高能量密度和低成本的超级电容器设备方面向前迈进了一步。