利用电弧法制备得到石墨烯(graphene)材料,并对其孔结构和电化学性能进行了研究.结果表明,利用电弧法制得的石墨烯具有发达、开放的介孔结构,比表面积为77.8 m2/g,中孔率高达74.7%.作为电化学电容器电极材料,其在7 mol/L的KOH电解液中比电容为12.9 F/g,大电流性能优异,在200 mV/s下的循环伏安曲线仍为矩形,交流阻抗谱的特征频率高达18.5 Hz,体现出具有十分优异的倍率性能.
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