摘要
Spinel-type CuFe_(2)O_(4)nanoparticles were syn-thesized by a solvother-mal method using ethy-lene glycol as solvent and polyvinylpyrroli-done(PVP)as disper-sant.The characteriza-tion results showed that the average diameter of the hollow-spherical CuFe_(2)O_(4)was approximately 100 nm with homogeneous morphology and negligible agglomeration.CuFe_(2)O_(4)was used as the active electrode material to explore its su-percapacitive properties in different concentrations of KOH electrolytes.It was found that the CuFe_(2)O_(4)hollow-spherical nanoparticles exhibit potential electronic performance in superca-pacitor,with a specific capacitance of 368.2 F/g and capacitance stability retention of 91.0%after 2000 cycles at the current density of 5 A/g in 3 mol/L KOH electrolyte.The present findings demonstrate that the CuFe_(2)O_(4)electrode materials can have important implications with practical prospects in energy storage systems.
基金
supported by Henan Province Key Research and Development and Promotion of Science and Technology Project(No.222102320336)
Applica-tion Research Plan of Key Scientific Research Projects of Higher Education Institutions of Henan Province(No.22B150018)
the National Natural Science Foundation of China(No.92061203)。
