【摘要】 以氧化石墨烯（GO）、石墨相氮化碳（g-C₃N₄）为前驱体,分别采用水热法、微波法、煅烧法制备石墨烯（RGO）/g-C₃N₄复合材料。通过X射线衍射（XRD）、扫描电子显微镜（SEM）、傅里叶转换红外光谱（FT-IR）和热重（TG）等测试手段表征材料的表面微观结构和还原程度,采用循环伏安（CV）、恒流充放电（GCD）及电化学交流阻抗（EIS）测试复合材料的电化学性能。结果表明:以煅烧法制备的复合材料,结晶度较高,孔结构分布均匀,复合材料循环稳定性较好,当电流密度为0.2 A/g时,电极材料的比电容为724.53 F/g,显现出良好的电化学性能。更多还原

【Abstract】 Graphene（RGO）/g-C₃N₄ composites were prepared by hydrothermal method, microwave method and calcination method using graphene oxide（GO） and graphite phase carbon nitride（g-C₃N₄） as precursors. The surface microstructure and degree of reduction of the material were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, Fourier transform infrared spectroscopy（FT-IR） and thermogravimetry（TG）. The electrochemical properties of the composite were tested by cyclic voltammetry（CV）, galvanostatic charge/discharge（GCD） and electrochemical impedance spectroscopy（EIS）. The results show that the composites prepared by calcination method have higher crystallinity, uniform pore structure distribution and good cycle stability, when the current density is 0.2 A/g, and the specific capacitance of the electrode material is 724.53 F/g, which shows good electrochemical performance.更多还原