Electrospinning of Candle Soot Nanoparticles for Supercapacitor Application

This work presents the fabrication of candle-soot (CS) nanofibers through electrospinning and demonstrates their use as high-performance electrodes for supercapacitors. The electrospinning is facilitated by dispersing CS nanoparticles within a precursor polymer solution, which is carbonized to obtain free-standing CS/carbon nanofiber electrodes. The electrodes exhibit superior electrochemical performance when compared to pristine carbon nanofibers. The fabricated supercapacitor yields a maximum capacitance of 433.5 F/g at 0.5 mA/cm2 current density, with a maximum energy density of 60.2 Wh/kg, at a power density of 283.1 W/kg, which is also significantly superior compared to reported carbon nanofiber-based supercapacitors.