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Alkarmo, W., Aqil, A., Ouhib, F., Thomassin, J.-M., Mazouzi, D., Guyomard, D., Detrembleur, C. & Jerome, C. (2017) Nanostructured 3D porous hybrid network of N-doped carbon, graphene and Si nanoparticles as an anode material for Li-ion batteries. New Journal of Chemistry, 41 10555–10560.
Added by: Richard Baschera (2017-10-24 13:30:33) Last edited by: Richard Baschera (2017-10-24 13:49:02) |
| Type de référence: Article DOI: 10.1039/c7nj02154b Numéro d'identification (ISBN etc.): 1144-0546 Clé BibTeX: Alkarmo2017 Voir tous les détails bibliographiques  |
Catégories: INTERNATIONAL, ST2E Créateurs: Alkarmo, Aqil, Detrembleur, Guyomard, Jerome, Mazouzi, Ouhib, Thomassin Collection: New Journal of Chemistry |
Consultations : 1/498
Indice de consultation : 4% Indice de popularité : 1% |
| Résumé |
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We report a facile and scalable process to prepare nanostructured 3D porous networks combining graphene, N-doped carbon and silicon nanoparticles (G@Si@C) as a promising anode material for batteries. It consists of preparing polymethylmethacrylate particles decorated by Si/graphene oxide and polypyrrole (PPy) in a one-pot process, followed by an appropriate thermal treatment that decomposes PMMA and converts graphene oxide into graphene and polypyrrole into N-doped carbon. The so-formed electrically conducting 3D porous network containing Si nanoparticles inside the cell walls accommodates the large volume changes of Si during charging/discharging and provides a fast electrolyte penetration/diffusion. Therefore, the designed G@Si@C material presents an excellent reversible capacity of 740 mA h g(-1) at a current density of 0.14 A g(-1) based on the total mass loading of the composite, with more than 99% coulombic efficiency, high rate capability and good cyclability, suggesting great potential for application as an anode material for lithium-ion batteries.
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