在空气气氛、150℃的条件下直接热处理氧化石墨获得含氧官能团化的石墨烯.采用X射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)、场发射扫描电镜(FESEM)和透射电镜(TEM)对其结构和形貌进行表征.利用循环伏安(CV)、恒流充放电技术对其电化学性能进行测试.结果表明,所制备的含氧官能团化的石墨烯表现出优良的电容性能,其单电极比电容值高达275F/g,且具有良好的倍率特性和循环性能.
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