85 MeV C6+ swift heavy ion irradiation of in-situ reduced graphene oxide–polypyrrole nanotubes nanocomposite films for supercapacitor electrodes

Ion-irradiation of catalyst and electrode materials for water electrolysis/photoelectrolysis cells, rechargeable batteries, and supercapacitors

“…Devi et al 121 synthesized hybrid nanocomposites of the reduced graphene oxide to 346 F/g at a fluence of 2.2×10 12 ions/cm 2 . After 1000 cycles, the irradiated nanocomposite retains 89% initial capacity which is higher than that of unirradiated nanocomposite (Fig.…”

“…However, the restriction of charge storage on the electrode surface makes their capacity much lower than batteries. 121–123 Among different electrode materials, electroactive polymers generally show a higher specific capacitance due to their ability to store charges by faradaic reactions on the surface. 124 Interestingly, the ion-irradiation technique has been proved to be effective in improving the electrical conductivity and generating active sites for the surface physical and chemical modification of the polymers.…”

“…Devi et al 121 synthesized hybrid nanocomposites of reduced graphene oxide (RGO) and polypyrrole nanotubes (PPyNTs). The electrical properties of RGO-PPyNTs have been impacted by SHII with 85 MeV C 6+ ions at different fluences.…”

A Review of Supercapacitors Based on Graphene and Redox-Active Organic Materials

“…However, CP-only electrodes exhibit poor cyclic stability because of volume changes during charge/discharge processes, which limits their wider application. A large number of studies demonstrate that graphene and CP composites, when used for electrode materials of supercapacitors, exhibit outstanding electrochemical and mechanical behaviors [ 37 , 38 , 39 ]. On this basis, researchers found that some organic molecules could be used to improve the properties of graphene-based supercapacitors.…”