Abstract
Porous carbon/Cobalt (C/Co), carbon/Nickel (C/Ni) and carbon/Copper (C/Cu) nanocomposites were prepared by electrospinning and subsequent carbonization processes at 800 °C in N2 atmosphere. Polymer solutions of polyacrylonitrile/Cobalt acetate (PAN/Co(OAc)2), polyacrylonitrile/Nickel acetate (Ni(OAc)2) and polyacrylonitrile/Copper acetate (Cu(OAc)2) were used as the porous nanocomposites precursors, respectively. It was found that C/Co, C/Ni and C/Cu nanocomposites with diameters of 147 nm were successfully fabricated. X-ray diffraction was used to confirm the presence of metal particles in the nanocomposites. The Brunauer-Emmett-Teller analysis revealed that nanocomposites possess larger specific surface area than that of the carbon nanofibers (C). The electrochemical properties were investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge tests. The C/Cu nanocomposite exhibited an energy density of 2.7Whkg−1, power density of 518 Wkg−1, and a specific capacitance of about 183 Fg−1 at a current density of 1 Ag−1.
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Gao, D., Wang, L., Wang, C. et al. Electrospinning of porous carbon nanocomposites for supercapacitor. Fibers Polym 16, 421–425 (2015). https://doi.org/10.1007/s12221-015-0421-2
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DOI: https://doi.org/10.1007/s12221-015-0421-2