人工晶体学报2018，Vol.47Issue(1)：71-76,6.
星状VO2纳米结构的制备及电化学性能研究
Fabrication and Electrochemical Properties of the Star-like VO2Nanostructure Materials
摘要
Abstract
The star-like VO2nanostructures were successfully fabricated via hydrothermal method as high-performance electrode material, using V2O5and oxalic acid as raw materials.The phase compositions, element and electronic valence state, and morphologies of the samples were characterized by X-ray diffraction spectrometry(XRD), X-ray photoelectron spectra(XPS)and scanning electron microscopy (SEM),respectively.The electrochemistry measurements show that the star-like VO2having a specific capacitance of 574.75 F· g-1at a current density of 0.2 A· g -1,and achieves a high energy density of 51.09 Wh· kg -1.The star-like VO2has good cycling stability with capacitance retention of 90.2%after 4250 charge-discharge cycles,which exhibits an excellent capacitance performance.关键词
星状二氧化钒/电极材料/比电容/能量密度Key words
star-like VO2/electode material/specific capacitance/energy density分类
化学化工引用本文复制引用
袁江涛,李坤振,刘中飞,熊狂伟,金绍维,王佩红..星状VO2纳米结构的制备及电化学性能研究[J].人工晶体学报,2018,47(1):71-76,6.基金项目
国家自然科学基金(61671017) （61671017）
