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Silicon is a good alternative to conventional graphite anode but it has bad cycling and rate performance. To overcome these severe problems, extensively interconnected silicon nanoparticles using carbon network derived from ultrathin cellulose nanofibers were synthesized. Ultrathin cellulose nanofibers, an abundant and sustainable material, entangle each silicon nanoparticle and become extensively...
Density functional theory (DFT) calculations were employed to investigate the adsorption and diffusion mechanisms of sodium on graphene nanoribbons (GNR). The calculated adsorption energy in the edge region (−1.096 eV) of pristine GNR was lower than that for the center region (−0.836 eV). In addition, the adsorption energies on GNRs with nitrogen-doped defects (4ND, 3NV, and pyrrolic: −3.794 to −1...
A meticulous solid state chemistry approach has been developed for the synthesis of carbon anode from a sustainable source. The reaction mechanism of carbon formation during pyrolysis of sustainable feed-stock was studied in situ by employing Raman microspectroscopy. No Raman spectral changes observed below 160 °C (thermally stable precursor) followed by color change, however above 280 °C characteristic...
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