Facile and safe graphene preparation on solution based platform

Mechanochemical preparation of graphene nanosheets and their supercapacitor applications

“…The XRD pattern of the mechanochemically prepared graphene showed a broad diffraction peak observed at 2u = 24.38 with an interlayer spacing of about 0.33 nm [14]. This finding suggested the regraphitization of graphene nanosheets via mechanochemical reduction of GO.…”

Interfacial complexation driven three-dimensional assembly of cationic phosphorus dendrimers and graphene oxide sheets

“…A complete disappearance of the signal attributed to the epoxide groups in GO (at $59 to 60 ppm) was observed, pointing out to the ring opening of the latter by nucleophilic species belonging to DG n . 24 A slight shi to high values was also observed for the signal belonging to graphenic CH 2 -OH from 68 to 71 ppm (Fig. S3a, ESI †), owing much probably to the proximal presence of heteroatoms or dynamic sliding of DG n at the carbon layers.…”

“…Accurate details were drawn from solid-state NMR spectroscopy. While CP MAS 13 C NMR of the starting GO displays only three signals nearly at 59, 69 and 132 ppm, attributed respectively to C-O-C, CH 2 -OH and C]C, 24 wellresolved signals assignable to the dendritic skeleton are also observed for DG n -GO hybrid materials. The characteristic methylene appears at 8.7 ppm, the N-methylated one at 33 ppm, the adjacent CH 2 -CH 3 at 46 ppm and the aromatics between 122 and 133 ppm.…”

“…S6, ESI †). 24 Compared to native DG n that displayed a wavelength maximum at 285 nm, DG n -GO maxima of these materials were shied to higher values with a signicant broadening of the band that may indicate the presence of both covalent and physical interactions as well as free terminal groups within the dendrimer skeleton. A signicant improvement of the thermal stability was noticed for DG n -GO compared to the pristine GO as illustrated by their TGA proles.…”

A review: synthesis and applications of graphene/chitosan nanocomposites

“…In other words, graphene is promising and gaining increasing attention for different applications [6][7]. The carbon atoms in GO within a single layer are combined via sp 2 -hybridization with other graphene layers [8][9]. Each carbon atom has an electron that is not involved in bonding, and these electrons form a large delocalized bond in the vertical direction.…”