A unique solar radiation exfoliated reduced graphene oxide/polyaniline nanofibers composite electrode material for supercapacitors

Synthesis of Aqueous Dispersible Reduced Graphene Oxide by the Reduction of Graphene Oxide in Presence of Carbonic Acid

“…To calculate the specific capacitance and rate performance of rGO, GCD studies were carried out at range of current densities as shown in (Figure b). The absence of plateaus during charging and discharging cycle and occurrence of the perfect symmetric triangular shape of GCD curves confirms the non‐faradic charge storage behavior of as fabricated supercapacitor . Specific capacitance calculated by using the equation 1 (S2, SI) which shows the obtained values of 350.3, 323.3, 313.2, 308.2, 306.6, 303.3, 301.3, 297.9 and 295.6 F g −1 at current densities of 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5 and 5 A g −1 , respectively.…”

“…The rectangular shape of CV curves correspondence to the electric double layer capacitive (EDLC) behavior. As, it can be seen from the CV curves, the rectangular shape is retained even at higher scan rates which are the good agreement to the ideal supercapacitive behavior and the ability of a material to withstand the broad range of voltage scan rates . To calculate the specific capacitance and rate performance of rGO, GCD studies were carried out at range of current densities as shown in (Figure b).…”

Unique reduced graphene oxide as efficient anode material in Li ion battery

“…Of late, reduced graphene oxide (RGO) was effectively used as an electrode material in dye-sensitized solar cell [1], supercapacitor [2] and Li ion battery (LIB) [3]. Generally, RGO is synthesized by reducing graphene oxide (GO) [4].…”

“…It is important to note that this work does not involve any sophistication, such as the use of highly sophisticated lasers [8,9] to obtain RGO. The motivation behind testing SRGO as anode material in LIB is owing to its previously reported characteristics [1][2][3], like high specific surface area and presence of residual functional groups (owing to partial reduction of GO), layered, structured and mesoporosity, which might result in enhanced adsorption of Li ions at the anode, intercalation of Li ions in between the stacked graphene layers and improved activity at the anode/electrolyte interface, respectively. Really, as expected, SRGO was found to be an excellent anode material in LIB.…”

Simple and fast synthesis of polyaniline nanofibers/carbon paper composites as supercapacitor electrodes

“…For obtaining high performance PANI electrodes, various chemical preparation methods have been developed such as chemical oxidative polymerization [2], templates or surfactants synthesis [3][4][5], seeding synthesis [6], interfacial polymerization [7,8], dilute polymerization [9] and oligomer assisted polymerization [10] etc. Although the above-mentioned chemical preparation methods have many advantages, the residual additives such as templates, oxidants and surfactants and so on gravely influence the electrochemical properties of the resulting PANI electrodes.…”