3D Interconnected Porous Graphitic Carbon@MoS2 Anchored on Carbonized Cotton Cloth as an Anode for Enhanced Lithium Storage Performance

Cotton textile inspires MoS2@reduced graphene oxide anodes towards high-rate capability or long-cycle stability sodium/lithium-ion batteries

“…4f ), which is assigned to 2p 3/2 and 2p 1/2 , respectively. 33,34 The C 1s of Fig. 4g reveals a strong C-C peak at 284.8 eV and a broad peak of C-OH/C-O-Mo at 286.2 eV.…”

Trace-H2O2 Boosting the Reaction Kinetics of H2SO4 Intercalation into Graphite for the High-Oxidation Efficiency Preparation of Graphene Oxide for Na Ion Storage

“…As shown in Figure a, the RPGO-100:1 electrode displays an improved C-rate performance compared to RGO and RPGO-10:1 electrodes, in which the RGO electrode releases specific capacities of 114, 94, 77, 55, 45, 40, and 29 mA h g –1 at current densities of 0.05, 0.1, 0.2, 0.5, 0.8, 1.0, and 2.0 A g –1 , respectively. CV curves (Figure b) of electrodes were obtained at a scan rate of 0.1 mV s –1 in a potential range between 0.01 and 3.0 V, and the weak and irreversible peak at 0.01–2.0 V at the first cycle corresponds to the formation of the SEI layer. − The initial three cycles of discharge–charge curves of the RPGO-100:1 electrode are shown in Figure c. At the current density of 0.05 A g –1 , an initial Coulombic efficiency (ICE) of around 27.9% (an initial discharge/charge specific capacity of 488/136 mA h g –1 ) displays an irreversible capacity loss due to the decomposition of electrolyte and the formation of SEI on the electrode surface during the first discharge process.…”

Fe3C-Functionalized 3D Nitrogen-Doped Porous Graphene Nanocomposites as Anode Materials for Lithium-Ion Batteries

“…Recently, the three-dimensional conductive network structure of porous carbon materials has effectively shortened the transport path of lithium ions and provided a larger surface area for the charge transfer reaction, making them a promising LIB anode material. − However, single porous carbon is still not enough to meets the demands for LIBs for its low theoretical capacity and initial Coulombic efficiency. − Doping heteroatoms, such as N, S, or P, into carbonaceous materials has been recognized to further improve the electrochemical performance of carbon materials. − Pan et al have improved the capacity of carbon nanotubes to 390 mA h g –1 at 1.488 A g – 1 for LIBs by doping N atoms (at 6%) . However, the most common method for doping N in graphene is a top-down method which is hard to achieve a high-nitrogen-doping content for the high chemical stability of carbon sources.…”