以茶籽壳为原料，以K2CO3作为活化剂，制备了新型活性炭。用氮气吸脱附法对活性炭的孔结梢进行了分析。以活性炭为电极材料，6mol／LKOH溶液为电解液组装成超级电容器，利用恒电流充放电、循环伏安、交流阻抗等电化学测试方法研究其电化学性能。结果表明，活化后的茶籽壳炭，其比表面积高达1272m^2／g，比电容高达150F／g，研究表明茶籽壳活性炭适用于超级电容器的电极活性材料。
Novel activated carbon has been prepared from tea seed shell by activation with K2CO3. The porosity of the activitated carbon sample was studied by the nitrogen adsorption at 77K. The supercapacitors were assembled with carbon electrode and electrolyte of 6mol/L KOH solution. Their electrochemical properties were investigated by galvanostatic charge/discharge, cyclic voltammogram and impedance spectrum. The results show that the specific surface area of the activated carbon is sharply increased after activation, the value is up to 1272m2/g, and the electrochemical performance is obviously improved, the specific capacitance is up to 150F/g, which suggests that it may be promising candidates for supercapacitors.
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