Green synthesized and electro spun flexible carbon current collector for supercapacitor applications

Abstract In this work, the carbon flakes were green synthesized from peanut shells and converted into nanofibers (CNF) using a mixture of N, N dimethylformamide, polyvinylidene fluoride, and polyvinyl fluoride polymers by electrospinning technique. The (002) plane of carbon is reflected in the XRD analysis and is supported by the D and G bands reflected in the Raman analysis. The FESEM analysis indicated the formation of nanofibers with a size of 160 nm. The active surface area was calculated from the BET analysis and found to be 889 m 2 /g. The prepared RuO 2 nanoparticles had a spherical grain size of 7.63 nm. the A1g, B2g, and Eg modes of vibrations of the Raman spectrum reflect the phase purity. The electrochemical performance of the prepared CNF current collector was analyzed and compared with that of commercially available current collectors (stainless steel [SS], nickel foam, and carbon cloth). The CV and GCD indicated that the SS has the best performance with RuO 2 active material with the highest specific capacitance of 186. 98 F/g at a scan rate of 40 mV/s with maximum energy density and power density values of 2401.19 Wh/Kg and 3.57 W/Kg respectively. The prepared CNF has the second‐best performance with the highest specific capacitance value of 101 F/g at 40 mV/s with maximum energy density and power density values of 1799.58 Wh/Kg and 2.25 W/Kg respectively. The results were supported by the electrochemical impedance spectroscopy.