Pentafluoropyridine functionalized novel heteroatom-doped with hierarchical porous 3D cross-linked graphene for supercapacitor applications

Abstract

Demonstration of the effect of Gibbs free energy (GT = −643.26 eV) on N, P, F co-doped graphene, simulated via density functional theory (DFT).

Covalently Functionalized Hydroxyl-Rich Few-Layer Graphene for Solid-State Proton Conduction and Supercapacitor Applications

“…Beyond 20,000 cycles, the drop in specific capacitance can be correlated with the slight decrease in diffusional properties (Table S11, SI) . The performance of HRFG-96 has been compared with that of covalently functionalized graphene materials, and the performance of HRFG-96 is found to be superior compared to previous reports (Table S12, SI). ,− …”

Nitrogen-doped reduced graphene oxide-polyaniline composite materials: hydrothermal treatment, characterisation and supercapacitive properties

“…8 Possibly, this is through the graphitic-N species, which adopt the sp 2 planar structure of the carbon framework to facilitate electron transfer (enhanced carrier mobility) and improve electrical conductivity and reduce bulk resistivity (Tables 4 and 5). 5,22,26 The rationale for the decrease in sheet resistance with an increase in reduction/N-doping temperature is possibly the increase in the C/O ratios (Tables 1 and 4).…”

“…A wide range of studies involving graphene derivatives, such as GO and RGO in particular, in ECs have been reported. 5,6,[13][14][15] Some current research efforts aim to further enhance their performance through composite synthesis, 16 surface functionalisation, 17 and heteroatom doping. 18 Chemical doping with effective atoms, such as nitrogen, phosphorus, sulfur, and boron, improves the charge density and electrical conductivity.…”

“…Owing to high surface area and mechanical strength, ease of manufacturing, non-toxicity, relatively low costs, and abundance; carbonaceous materials are promising contenders for electrode materials. 1,5,6 Among the carbonaceous materials, graphene-based materials have been widely studied in constructing EC electrodes because of their large ion-accessible surface areas. Graphene forms the backbone of most carbonaceous materials and consists of a one-carbon atom thick sheet of hexagonally arranged sp 2 -hybridised carbon atoms.…”