Various Treated Conditions to Prepare Porous Activated Carbon Fiber for Application in Supercapacitor Electrodes
Various Treated Conditions to Prepare Porous Activated Carbon Fiber for Application in Supercapacitor Electrodes
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DOI：
10.1021/ef900560u
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发表时间：
2009-08
期刊：
影响因子：
5.3
通讯作者：
Jui‐Hsiang Lin;Tse-Hao Ko;Yu-Hsin Lin;Chung-Kai Pan
中科院分区：
文献类型：
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作者：
Jui‐Hsiang Lin;Tse-Hao Ko;Yu-Hsin Lin;Chung-Kai Pan
以氧化聚丙烯腈（PAN）纤维为原料，采用传统化学活化、传统物理活化和改进化学活化3种活化方法制备多孔活性炭纤维（ACF）。将经过不同高温热处理的样品用作超级电容器的电极。采用77 K氮吸附、X射线衍射（XRD）、拉曼光谱、电子能谱（ECSA）、傅里叶变换红外光谱（FTIR）、循环伏安（CV）和恒流充放电等测试手段对样品的结构和电化学性能进行了表征。一旦通过用于超级电容器电极的改进的化学活化方法形成，样品在1 M H2SO 4电解液中表现出优异的电容特性，并显示出158 F/g的高比电容，这高于两种传统的活化方法。HP 20 −1/3−900具有高...
Porous activated carbon fiber (ACF) is prepared from oxidized polyacrylonitrile (PAN) fiber through three activation methods, which are traditional chemical activation, traditional physical activation, and ameliorative chemical activation. The samples under various high temperature heat treatments are used as electrode for the supercapacitor. The structure and electrochemical properties of these samples are then characterized by nitrogen adsorption at 77 K, X-ray diffraction (XRD), Raman spectrum, electron spectroscopy for chemical analysis (ECSA), Fourier transform infrared spectrometer (FTIR), cyclic voltammetry (CV), and galvanotactic charge/discharge, respectively. Once formed by the ameliorative chemical activation method, which is used for the electrodes of supercapacitors, the samples exhibited excellent capacitance characteristics in the 1 M H2SO4 electrolyte and showed a high specific capacitance of 158 F/g, which is higher than the two traditional activation methods. HP20−1/3−900 presents a high...