CeO_(2)@Ni(OH)_(2)/CC复合电极材料的制备及其性能的研究  

Preparation and Properties of CeO_(2)@Ni(OH)_(2)/CC Composite Electrode Materials

作　　者：关高明 吴东杰 谢玉玫 黄佳儒 蒋辽川[1] GUAN Gaoming;WU Dongjie;XIE Yumei;HUANG Jiaru;JIANG Liaochuan(College of Chemistry and Materials Science,Guangdong Second Normal University,Guangdong Guangzhou 510730,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：《广州化工》2024年第19期31-34,40,共5页GuangZhou Chemical Industry

基　　金：大学生创新创业训练计划项目(No:S202214278028、S202214278029)。

摘　　要：以柔性碳纤维(CC)为基底,采用化学镀法和电化学沉积法负载Ni(OH)_(2),并对其制备条件进行优化,得到性能良好的Ni(OH)_(2)/CC复合材料,再以电化学方法对Ni(OH)_(2)/CC进行稀土掺杂改性,制备出CeO_(2)@Ni(OH)_(2)/CC复合电极材料。采用透射电镜(TEM)、场发射扫描电子显微镜(SEM)、X射线衍射仪(XRD)和X射线光电子能谱分析(XPS)等测试对样品的形貌、组成以及结构进行分析;稳定性测试结果表明电极材料的比电容量呈先上升后稳定的趋势,电容保持率为164.76%;10 mA/cm^(2)的恒电流充放电时,CeO_(2)@Ni(OH)_(2)/CC的比电容高达872 mF/cm^(2)。Using flexible carbon fiber(CC)as the substrate,Ni(OH)_(2) was loaded by chemical plating and electrochemical deposition methods to obtain Ni(OH)_(2)/CC composite materials with good performance.Then,Ni(OH)_(2)/CC was modified with rare earth by electrochemical methods to prepare CeO_(2)@Ni(OH)_(2)/CC composite electrode materials.The morphology,composition and structure of the sample were analyzed using transmission electron microscopy(TEM),field emission scanning electron microscopy(SEM),X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS).The stability test results showed that the specific capacitance of the electrode material showed a trend of first increasing and then stabilizing,with a capacitance retention rate of 164.76%.When while charging and discharging at a constant current of 10 mA/cm^(2),the specific capacitance of CeO_(2)@Ni(OH)_(2)/CC was as high as 872 mF/cm^(2).

关 键 词：氢氧化镍 二氧化铈 超级电容器 电极材料 

分 类 号：O646.6[理学—物理化学]