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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
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Créateurs: Alkarmo, Aqil, Detrembleur, Guyomard, Jerome, Mazouzi, Ouhib, Thomassin
Collection: New Journal of Chemistry
Consultations : 3/498
Indice de consultation : 4%
Indice de popularité : 1%
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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