微波辐射法制备竹炭电极材料

Bamboo carbon electrode materials prepared by microwave radiation process

以毛竹为碳源,用微波辐射法制备了电化学双电层电容器(EDLC)用竹炭电极材料。用XRD、低温氮气吸附、恒流充放电、循环伏安和交流阻抗等方法分析了微波功率、辐射时间对竹炭电容性能的影响。竹炭最佳制备工艺为:微波功率640W,辐射时间12min。制得的竹炭比表面积达2019.2m2/g,在充放电电流为100mA/g时,比电容为242.3F/g。

Electrochemical double layer capacitor（EDLC）electrode material bamboo carbon was prepared by microwave radiation process using moso bamboo as carbon source. The influences of microwave power and radiation time on the capacitance performance of bamboo carbon were analyzed by XRD,low temperature N2 adsorption,galvanostatic charge-discharge,cyclic voltammetry and AC impedance methods. Microwave power at 640 W and radiation time for 12 min were regarded as the optimum process. The bamboo carbon prepared under this process had the specific surface area of 2 019.2 m2/g,the specific capacitance was 242.3 F/g at the charge-discharge current of 100 mA/g.