法国梧桐枯叶基活性炭的制备及其在超级电容器中的应用

发布时间：2018-03-02 07:02

本文关键词： 生物质活性炭电化学法国梧桐超级电容器电极材料　出处：《化工学报》2017年07期 　论文类型：期刊论文

【摘要】：以生物质法国梧桐枯叶为原料,将炭化的枯叶通过KOH化学活化处理,制备法国梧桐枯叶基活性炭(PLAC)。采用扫描电子显微镜(SEM)、X射线能量色散谱(EDS)、X射线光电子能谱(XPS)、傅里叶变换红外光谱(FTIR)、氮气吸脱附对法国梧桐基枯叶活性炭的形貌、成分、比表面积、孔径分布等进行表征;运用三电极电化学体系,通过循环伏安,恒流充放电,循环稳定性测试,电化学阻抗谱分析法国梧桐枯叶基活性炭的超级电容器电极性能。结果显示,在800℃下碳化,通过KOH活化处理的法国梧桐基活性炭制备的电极,在1 A·g~(-1)电流密度下,比电容达到266 F·g~(-1)。电极在5 A·g~(-1)的电流密度下循环2000次后,比容量仍保留97.0%,展示出良好的电极性能。
[Abstract]:The biomass Platanus leaves as raw materials, the carbonized leaves by KOH chemical activation treatment, preparation of Platanus leaves based activated carbon (PLAC). By using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (X EDS), X ray photoelectron spectroscopy (XPS), Fu Liye transform infrared spectroscopy (FTIR). Nitrogen adsorption desorption of Platanus leaves morphology based activated carbon composition, specific surface area and pore size distribution were characterized by electrochemical system; three electrode by cyclic voltammetry, galvanostatic charge discharge, cyclic stability test, electrochemical impedance spectroscopy of super capacitor electrode performance analysis of Platanus leaves based activated carbon. Results show that the carbonization at 800 DEG C, Platan electrode based activated carbon prepared by KOH activation, in 1 A - g~ (-1) current density, the specific capacitance reached 266 F - g~ (-1). The electrode in 5 A - (-1 g~) the current density after 2000 cycles specific volume The amount remains 97%, showing good performance of the electrode.

【作者单位】：华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室上海市先进聚合物材料重点实验室;中国科学院上海微系统与信息技术研究所信息功能材料国家重点实验室;
【基金】：上海市重点学科和重点实验室项目(B502,08DZ2230500)~~
【分类号】：TM53

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