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Free-standing fluorine and nitrogen co-doped graphene paper (FNGP) electrodes were synthesized by a solvothermal process as potential anodes for flexible sodium-ion batteries (SIBs). F and N co-doping in the graphene frameworks simultaneously increases structural defects, provides active sites, and enlarges the graphene interlayer distance; these properties are favourable for improving Na+ storage...
The thermal conductivities (TCs) of graphene and folded graphene (FG) were calculated by non-equilibrium molecular dynamics (NEMD) simulation with the Condensed-phase Optimized Molecular Potential for Atom Simulation Studies (COMPASS) force field. The heat flux of FG model is along the direction perpendicular to the graphene sheet fragments connected by two nearest kinked regions. By extrapolation...
FePt nanoparticles (NPs)/reduced graphene oxide (rG-O) composites have been synthesized using a one-pot strategy without surfactants. Monodisperse FePt NPs were homogenously loaded onto rG-O sheets. By controlling the concentration of dispersed graphene oxide (GO), uniform FePt flower-like nanoclusters can be obtained. FePt/rG-O composites exhibited exceptionally high electrocatalytic performance...
We proposed here a one-pot route to prepare resorcinol/formaldehyde (RF) resin-based carbon materials with highly ordered mesostructures in an aqueous media. Compared with other techniques, the synthesis is a single-step process; neither prepolymerization nor thermal solidification is needed. The crucial difference to the previous methods is that the commonly used formaldehyde is replaced with hexamine...
An azobenzene (AZO) chromophore was covalently attached to graphene oxide (GO) through an amide linkage. The microstructure of the GO–AZO hybrid was characterized by microscopic and X-ray diffraction methods. An internal short-range ordered crystalline structure similar to graphite was observed. Spectroscopic evidence testified the strong electronic interactions between the AZO and GO in this GO–AZO...
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