石墨烯(graphene,Gr)2004年于英国科学家Geim等首次合成,是经sp2杂化的单层碳原子紧密堆积组成的二维蜂窝状碳纳米材料,具有很多优良特性,如较大的比表面积(理论值可达2 600 m~2/g)、高热导率和电子传递性能等。因而作为一种新型纳米材料应用于化学修饰电极,可有效促进电极表面的电 For the first time, graphene (Gr) was synthesized by British scientist Geim et al in 2004. It is a two-dimensional honeycomb carbon nanomaterial that is closely packed with sp2 hybrid single-layer carbon atoms and has many excellent properties such as large specific surface area (Theoretical value up to 2 600 m ~ 2 / g), high thermal conductivity and electron transfer properties. Therefore, as a new type of nano-materials used in chemically modified electrodes, can effectively promote the electrode surface of the electricity