不同种类生物质制备活性炭电池的研究
Study on Preparation of Activated Carbon Cells from Different Biomass

以过期的红薯淀粉，小麦淀粉，玉米淀粉三种生物质为碳源，以KOH为活化剂，经过活化后得到超级电容器用活性炭。采用循环伏安法、恒流充放电和交流电化学阻抗评价了样品的电化学性能以及影响电化学性能的关键因素。结果表明，以红薯淀粉为碳源制备的活性炭电化学性能最佳，当电流密度为1 A/g时，红薯淀粉活性炭样品的比电容高达178 F/g。本实验可对废弃生物质的高值循环利用提供参考。
Using expired sweet potato starch, wheat starch and corn starch as carbon source and KOH as activator, activated carbon for super capacitor was obtained. The electrochemical properties of the samples and the key factors affecting the electrochemical properties were evaluated by cyclic voltammetry, constant current charge-discharge and alternating current electrochemical impedance. The results showed that the activated carbon prepared with sweet potato starch as carbon source had the best electrochemical performance. When the current density was 1 A/g, the specific capacitance of the activated carbon sample was as high as 178 F/g. This experiment can provide the reference for high value recycling of waste biomass.