为探究碳化温度对CuO@CNFs复合电极的形貌和电学性能的影响,采用静电纺丝技术制备醋酸铜@聚丙烯腈[Cu(CH₃COO)₂·H₂O@PAN],并通过不同的碳化温度获得CuO@CNFs复合电极;利用扫描电子显微镜(SEM)、X射线衍射仪(XRD)、能谱仪(EDS)、拉曼光谱(Raman)对其微观形貌、组成、石墨化程度进行表征,采用循环伏安法(CV)分析不同热处理温度下的电极电化学性能。结果表明,当碳化温度为450℃时,复合电极石墨化程度不高(R=1.55);当碳化温度为600℃时,CuO均匀地嵌入在碳纤维中,并且分布均匀;在扫描速率为10 mV/s时,电极的比容量达到344 F/g,表现出良好的电学性能。

In order to explore the effect of carbonization temperature on the morphology and electrical properties of CuO@CNFs composite electrode,copper acetate@polyacrylonitrile [Cu(CH₃COO)₂·H₂O@PAN] is prepared by means of electrospinning technology,and CuO@CNFs composite electrode is obtained under different carbonization temperatures.Scanning electron microscopy (SEM),X-ray diffractometry (XRD),energy dispersive spectroscopy (EDS) and Raman spectroscopy are used to characterize the morphology,composition and graphitization degree of the electrode.Cyclic voltammetry (CV) is employed to analyze the electrochemical properties of the electrode at different heat treatment temperature.The results show that the graphitization degree of the composite electrode is not high (R=1.55) when the carbonization temperature is 450℃.CuO is evenly embedded in carbon fiber and distributes uniformly when the carbonization temperature is 600℃.Under a scanning rate of 10 mV·s^-1,the specific capacity of the electrode reaches 344 F·g^-1,showing a good electrical performance.

黄永(1995-),男,硕士研究生,主要从事超级电容器的电极材料研究,877258830@qq.com