【摘要】 通过简单的一步水热反应制备出V₂O₅/RGO纳米复合材料。采用XRD、SEM及电化学工作站对其结构、形貌和电化学性能进行了分析表征。结果表明,V₂O₅/RGO纳米复合材料中V₂O₅晶型为斜方晶相,复合材料中V为V+4、V+5两种价态,且V₂O₅/RGO的形貌为片状结构,该纳米复合材料在0.5mol/L K2SO4电解液中以5m V/s进行CV测试时,比电容可达208.04 F/g,而且其电化学窗口可以达到1.6V（-0.6¹.0V）,表明V₂O₅/RGO纳米复合材料有望成为一种潜在的超级电容器电极材料。更多还原

【Abstract】 V₂O₅/RGO nanocomposite was fabricated via a simple one-pot hydrothermal process. The structure,morphology and electrochemical performances of the as-prepared V₂O₅/RGO composite were characterized by XRD, SEM and electrochemical workstation, respectively.The results show that the crystal of V₂O₅ belongs to orthorhombic phase in the V₂O₅/RGO composite, and the valence state of V is V+4,V+5. Moreover, the shape of V₂O₅/RGO is sheet. What’s more, the specific capacitance of the composite exhibites 208.04 F/g at a scan rate of 5 m V/s in 0.5mol/L K2SO4 electrolyte, besides, the electrochemical window can reach to 1.6V（-0.6¹.0V）, implying that the V₂O₅/RGO nanocomposite is a promising electrode material for supercapacitor.更多还原