南京师大学报（自然科学版）2025，Vol.48Issue(6)：20-27,8.DOI:10.3969/j.issn.1001-4616.2025.06.003
Co-Ni-Yb三元纳米片及其电化学性能研究
Co-Ni-Yb Ternary Nanosheets and Its Electrochemical Properties
摘要
Abstract
Supercapacitors are a new type of energy storage device with excellent properties,but the disadvantages of low energy density and high cost hinder its development.Therefore,the development of high-performance and low-cost electrode materials is an effective way to solve these problems.In this paper,different ratios of cobalt-nickel complex(Co-Ni)were successfully prepared by solvent-heating method.Subsequently,the rare earth element ytterbium(Yb)was added on this basis to synthesize successfully Co-Ni-Yb ternary nanocrystals.Their structure and morphology were characterized by X-ray diffraction(XRD)and transmission electron microscopy(TEM),and their electrochemical performance tests were performed(cyclic voltammetry,constant-current charge/discharge,and stability test).The results showed that the incorporation of Yb led to a significant reduction in ion and electron transport pathways.It is noteworthy that the Co-Ni-Yb composite with a ration of 40∶20∶3 demonstrated enhanced electrochemical behavior and a high specific capacitance(326.1 F/g).Therefore,the successful synthesis of Co-Ni-Yb ternary layered nanocrystals opens the way for their applications in energy storage,catalysis,and sensors.关键词
过渡金属氢氧化物/Yb/溶剂热法/循环伏安法/恒电流充放电Key words
transition metal hydroxide/Yb/solvothermal method/cyclic voltammetry/constant current charge and discharge分类
化学化工引用本文复制引用
Wang Xin,Yu Fang,Jiang Caiyun,Ma Xinyi,Cao Yuanyuan,Chen Changyun..Co-Ni-Yb三元纳米片及其电化学性能研究[J].南京师大学报（自然科学版）,2025,48(6):20-27,8.基金项目
江苏省高校优秀科技创新团队项目(2021)、江苏省第六期"333人才"培养资助项目(2022)、江苏省农业自主创新基金项目(CX(23)3045)、江苏经贸职业技术学院'领军人才'项目、2019年江苏经贸职业技术学院校级重点课题项目(JSJM019). （2021）
