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Electrospun carbon nanofiber web electrode: Supercapacitor behavior in various electrolytes

机译:Electrom碳碳纳米河网电极:各种电解质中的超级电容器行为

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Carbon nanofibers (CNFs) draw great interest due to their noticeable mechanical, electrochemical, and physical properties. In this study, polyacrylonitrile-based CNFs are obtained via electrospinning technique. Thermal oxidation and low temperature (950 degrees C) carbonization are applied to the electrospun web in order to achieve CNF. Through the process, Fourier transform infrared-attenuated total reflectance spectroscopy and Raman spectroscopic results are investigated. The electrochemical properties of the self-standing CNF webs are examined with electrochemical impedance spectroscopy and cyclic voltammetry. In addition, various electrolyte solutions are studied to investigate the capacitive behavior of CNF webs. Electrolyte type variation has a significant effect on the capacitance results and high capacitance values are achieved in aqueous solution. According to the differing electrolyte types, specific capacitance values (C-sp) are recorded between 204 and 149 Fg(-1) where maximum specific capacitance is obtained in 0.5 M H2SO4 as 204 Fg(-1). (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45723.
机译:碳纳米纤维(碳纳米纤维),由于其显着的机械,电化学,物理性能绘制了极大的兴趣。在这项研究中,聚丙烯腈系的CNF通过静电纺丝技术获得。热氧化和低温(950℃)碳化被施加到所述电网络以实现CNF。通过该过程,傅立叶变换红外衰减全反射光谱法和拉曼光谱的结果进行了研究。自立CNF网的电化学性能进行检查与电化学阻抗谱和循环伏安法。此外,各种电解质溶液进行了研究探讨CNF网的电容行为。电解液型变化对电容的结果和高电容值的效果显著在水溶液中实现的。根据不同类型的电解质,具体电容值(C-SP)被记录204和149之间的纤维蛋白原(-1)其中,在0.5M H 2 SO 4作为204 Fg被获得最大的比电容(-1)。 (c)2017 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2018年,135,45723。

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