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采用简单的超声自组装法制备了石墨烯/三氧化钼纳米带复合材料。最终产物的组成和结构采用多种不同的手段进行了表征,包括扫描电镜、透射电镜、X射线衍射、拉曼光谱以及热分析等。该复合材料可以用作超级电容器电极材料。电化学实验结果表明石墨烯/三氧化钼纳米带复合材料比电容可达到285.5 F·g~(-1),且在电流密度为1 A·g~(-1)时经过1 000次循环后其电容值能保持初始值的99.5%.
Graphene / molybdenum trioxide nanoribbon composites were prepared by a simple ultrasonic self-assembly method. The composition and structure of the final product were characterized by a variety of different means, including scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy and thermal analysis. The composite material can be used as a supercapacitor electrode material. The results of electrochemical experiments showed that the specific capacitance of graphene / molybdenum trioxide nanoribbon composite reached 285.5 F · g -1, and after 1 000 cycles at current density of 1 A · g -1 Its capacitance value can maintain the initial value of 99.5%.