Enhanced Electrochemical Properties of Electron Beam Irradiated Carbon Nanofibers as an Electrode for Supercapacitor

초록

Surface properties of carbon nanofibers (CNFs) were modified by electron beam (e-beam) irradiation, and electrochemical performances of treated CNFs as the supercapacitor electrode were investigated. Since the capacity of a supercapacitor is affected by the surface properties of the electrode, the improvement of the electrode surface properties using various techniques has been widely investigated, however, e-beam treatment on CNFs is quite limited. In this study, CNFs were manufactured through the carbonization process of polymer nanofibers fabricated using electrospinning, and structural and electrochemical properties of e-beam irradiated CNF electrodes were analyzed. By the e-beam treatment, the diameter of CNF decreased from 646 nm to 457 nm, and the surface area increased from 529 m(2) g(-1) to 1452 m(2) g(-1). e-Beam irradiated CNFs were used as supercapacitor electrodes to analyze their electrochemical performance and showed a great electrochemical performance compared to the pristine CNFs.

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