超级电容器
离子液体
材料科学
扫描电子显微镜
电解质
化学工程
壳聚糖
活性炭
电容
电化学
背景(考古学)
电极
聚合物
循环伏安法
拉曼光谱
复合材料
化学
有机化学
物理化学
催化作用
吸附
古生物学
工程类
物理
光学
生物
作者
Sultan Ahmed,Ahsan Uddin Ahmed,M. Rafat
出处
期刊:Advances in Natural Sciences: Nanoscience and Nanotechnology
[IOP Publishing]
日期:2019-05-02
卷期号:10 (2): 025003-025003
被引量:14
标识
DOI:10.1088/2043-6254/ab1647
摘要
In the present work, the performance characteristics of symmetric supercapacitor employing activated carbon electrodes have been studied in pure ionic liquid (1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, EMITFSI) and its gel polymer. Activated carbon (AC) was derived from chitosan using chemical activation method. The influence of activation temperature on the porous characteristics of prepared AC was comprehensively investigated, employing surface area and pore size analyzer. Other textural properties of synthesized AC were investigated employing the techniques of scanning electron microscopy (SEM), x-ray diffraction (XRD) and Raman spectroscopy. Gel polymer electrolyte (GPE) was prepared employing solution cast method. Symmetric supercapacitor cells were prepared and their performance was evaluated in two-electrode system employing standard electrochemical characterization techniques. It was observed that the supercapacitor cell using GPE offers superior performance (in the context of specific capacitance and cyclic stability), as compared to the supercapacitor cell employing pure ionic liquid (IL).
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