柔性Yb(OH)_(3)@Ni(OH)_(2)/CC纳米复合电极材料的制备及性能研究  

Preparation and Properties of Flexible Yb(OH)_(3)@Ni(OH)_(2)/CC Nanocomposite Electrode Materials

作　　者：谢玉玫 欧阳玉君 黄佳儒 刘丽平 关高明 XIE Yu-mei;OU YANG Yu-jun;HUANG Jia-ru;LIU Li-ping;GUAN Gao-ming(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44-46,112,共4页Synthetic Materials Aging and Application

基　　金：大学生创新创业训练计划项目(No:202114278005,S202114278026)。

摘　　要：以柔性碳纤维(CC)作为基底材料,分别采用化学镀镍、电化学氧化和电化学沉积的方法制备出Yb(OH)3复合Ni(OH)2碳纤维纳米电极材料(Yb(OH)_(3)@Ni(OH)_(2)/CC)。以X射线衍射仪(XRD)测试材料的结构和组成成分;利用场发射扫描电子显微镜(FE-SEM)对材料的微观形貌进行表征;利用线性循环伏安法(CV)、交流阻抗法(EIS)、恒流充放电法(GCD)对材料的电化学性能进行测试研究。实验结果表明,当电流密度为10mA/cm^(2)时,该复合材料的面积比电容高达1216mF/cm^(2);循环充放电1000次后的容量保持率为90%,比Ni(OH)2/CC材料的容量保持率提高14%。Yb(OH)_(3)@Ni(OH)_(2)/CC was prepared by electroless nickel plating, electrochemical oxidation and electrochemical deposition using flexible carbon fiber(CC) as the substrate. The structure and composition of the materials was tested by X-ray dif fraction(XRD). Field emission scanning electron microscopy(FE-SEM) was used to characterize the micro morphology of the materials. The electrochemical properties of the materials were determined by linear cyclic voltammetry(CV), electrochemical impedance spectroscopy(EIS) and galvanostatic charge-discharge(GCD). The experimental results show that when the current density is 10mA/cm^(2), the area specific capacitance of the composite is 1216mF/cm^(2). After 1000 cycles of charging and discharging,the capacity retention rate is 90%, which is 14% higher than that of Ni(OH)2/CC nanomaterials.

关 键 词：氢氧化镍 氢氧化镱 超级电容器 纳米复合电极材料 

分 类 号：TB332[一般工业技术—材料科学与工程]