基于碳布复合三维阵列VOx纳米片的构筑及其电容性能的研究  

Construction and Capacitance Properties of VOx Nanosheets Based on Carbon ClothComposite Three-dimensional Array

作　　者：赖晓璇 黎秀镇 许漫洁 赵丽莉 曾宝怡 陈绮滢 关高明 蒋辽川[1] LAI Xiao-xuan;LI Xiu-zhen;XU Man-jie;ZHAO Li-li;ZENG Bao-yi;CHEN Qi-ying;GUAN Gao-ming;JIANG Liao-chuan(School of Chemistry and Material Science,Guangdong University of Education,Guangzhou 510730,Guangdong,China)

机构地区：[1]广东第二师范学院化学与材料科学学院,广东广州510730

出　　处：《合成材料老化与应用》2023年第1期37-39,49,共4页Synthetic Materials Aging and Application

基　　金：广东省自然科学基金(2015A030313841);广东省教育厅育苗项目(2012LYM_0099);大学生创新创业训练计划项目(No:202114278006,S202114278023)。

摘　　要：以柔性碳布(CC)作为基底,通过水热法制备VOx/CC纳米材料。利用扫描电镜(SEM)、X射线衍射仪(XRD)、循环伏安法(CV)、恒电流充放电法(GCD)和电化学交流阻抗法(EIS)等表征手段和电化学测试技术对材料的形貌、组成和电容性能进行分析。实验结果表明,当电流密度为10mA/cm2时,纳米片状VOx/CC电极仍保持531.5mF/cm2较高的面积比电容。交流阻抗测试表明溶液阻抗与传荷阻抗都明显减小,说明VOx具有良好的导电性并有利于传质扩散。VOx/CC nano materials were prepared by hydrothermal method with flexible carbon cloth(CC) as substrate. Scanning electron microscopy(SEM), X-ray diffraction(XRD), cyclic voltammetry(CV), galvanostatic charge discharge(GCD) and electrochemical impedance spectroscopy(EIS) were used to analyze the morphology, composition and capacitive properties of the materials. The experimental results show that when the current density is 10mA/cm~2, the nano flake VOx/CC electrode still maintains a high area specific capacitance of 531.5mF/cm~2. AC impedance tests show that the solution impedance and charge transfer impedance are significantly reduced, indicating that VOxhas good conductivity and is conducive to mass transfer and diffusion.

关 键 词：超级电容器 柔性碳布 氧化钒 纳米材料 

分 类 号：O646.2[理学—物理化学]