Chlorine-doped reduced graphene oxide nanosheets as an efficient and stable electrode for supercapacitor in acidic medium

Heteroatom‐Doped and Oxygen‐Functionalized Nanocarbons for High‐Performance Supercapacitors

“…[200] An improved specific capacitance, rate performance, lower charge-transfer resistance in Cl-doped rGO over pristine rGO are certainly indicative of better capacitive properties. [201] With the improvement in electrical conductivity, Cl-doping also assists to integrate the rGO film, decomposes the oxygen groups present on graphene and converts them to gases subsequently as well as serves as a reducing agent in Cl-rGO film. HCl assisted solvothermal method is an effective method to prepare the Cl-rGO samples.…”

Thermally reduced fluorographenes as efficient electrode materials for supercapacitors

“…[59][60][61] Beyond these benefits, it has been also reported that the doping of halogen atoms highly affects the electronic properties such as conductivity. [62][63][64][65] An et al prepared an optimized fluorinated graphene hydrogel with capacitance values up to 227 F g −1 at a current density of 1 A g −1 in 6 M KOH. 66 Kou et al synthesized a graphene based material (OMG-Cl) doped by chlorine giving the capacitance value of 250 F g −1 at a current density of 0.5 A g −1 in 1 M H 2 SO 4 and 220 F g −1 in 6 M KOH.…”

“…63 Kakaei et al reported chlorine-doped reduced graphene oxide nanosheets, which exhibited the capacitance value of 178.4 F g −1 at a current density of 1 A g −1 in 1 M H 2 SO 4 . 64 Ye et al described the fluffy reduced graphene oxide film doped with iodine with the capacitance of 238 F g −1 at a current density of 0.5 A g −1 in 1 M H 2 SO 4 . 65 Bulusheva et al analyzed the structure and supercapacitor performance of graphene materials obtained from brominated and fluorinated graphites and concluded that the capacitance of a material doped with fluorine increased up to 158 F g −1 at a scan rate of 2 mV s −1 (in 1 M H 2 SO 4 ).…”

Facile electrosynthesis of nano flower like metal-organic framework and its nanocomposite with conjugated polymer as a novel and hybrid electrode material for highly capacitive pseudocapacitors

“…One of the most important parameters for practical application is cycling stability. the straight line indicates a capacitive behavior related to the charging mechanism [29][30][31][32][33][34]. No obvious semicircle was observed at the frequency range, this suggests that the electron transfer resistance can be neglected, because of the high conductivity [35].…”