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- Title
Poly(ionic liquid)‐Derived N‐Doped Carbons with Hierarchical Porosity for Lithium‐ and Sodium‐Ion Batteries.
- Authors
Alkarmo, Walid; Ouhib, Farid; Aqil, Abdelhafid; Thomassin, Jean‐Michel; Yuan, Jiayin; Gong, Jiang; Vertruyen, Bénédicte; Detrembleur, Christophe; Jérôme, Christine
- Abstract
The performance of lithium‐ and sodium‐ion batteries relies notably on the accessibility to carbon electrodes of controllable porous structure and chemical composition. This work reports a facile synthesis of well‐defined N‐doped porous carbons (NPCs) using a poly(ionic liquid) (PIL) as precursor, and graphene oxide (GO)‐stabilized poly(methyl methacrylate) (PMMA) nanoparticles as sacrificial template. The GO‐stabilized PMMA nanoparticles are first prepared and then decorated by a thin PIL coating before carbonization. The resulting NPCs reach a satisfactory specific surface area of up to 561 m2 g−1 and a hierarchically meso‐ and macroporous structure while keeping a nitrogen content of 2.6 wt%. Such NPCs deliver a high reversible charge/discharge capacity of 1013 mA h g−1 over 200 cycles at 0.4 A g−1 for lithium‐ion batteries, and show a good capacity of 204 mA h g−1 over 100 cycles at 0.1 A g−1 for sodium‐ion batteries. A facile synthesis of well‐defined N‐doped porous carbons (NPCs) is developed using a poly(ionic liquid) as precursor, and graphene‐oxide‐stabilized poly(methyl methacrylate) nanoparticles as sacrificial template. The resulting NPCs deliver a high reversible capacity for lithium‐ion batteries, and a good one for sodium‐ion batteries.
- Subjects
POLYMERIZED ionic liquids; NITROGEN; DOPED semiconductors; CARBON; POROSITY; LITHIUM-ion batteries; SODIUM ions
- Publication
Macromolecular Rapid Communications, 2019, Vol 40, Issue 1, pN.PAG
- ISSN
1022-1336
- Publication type
Article
- DOI
10.1002/marc.201800545