[en] 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.
Research center :
Center for Education and Research on Macromolecules (CERM) CESAM - Complex and Entangled Systems from Atoms to Materials - ULiège
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Alkarmo, Walid ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Ouhib, Farid ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Aqil, Abdelhafid ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Thomassin, Jean-Michel ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Yuan, Jiayin; University of Stockholm, Department of Materials and Environmental Chemistry, Sweden
Gong, Jiang; University of Huazhong of Science and Technology, Ministry of Education, School of Chemistry and Chemical Engineering, Key Laboratory for Material Chemistry of Energy Conversion and Storage, Wuhan, China
Vertruyen, Bénédicte ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Group of Research in Energy and ENvironment from MATerials (Greenmat) and Laboratory of Structural Inorganic Chemistry (LCIS)
Detrembleur, Christophe ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Jérôme, Christine ; University of Liège (ULiège), Complex and Entangled Systems from Atoms to Materials (CESAM), Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Poly(ionic liquid)-derived N-doped carbons with hierarchical porosity for lithium- and sodium-ion batteries
Publication date :
January 2019
Journal title :
Macromolecular Rapid Communications
ISSN :
1022-1336
eISSN :
1521-3927
Publisher :
John Wiley & Sons, United Kingdom
Volume :
40
Issue :
1
Pages :
1800545
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 289347 - RENAISSANCE - TRAINING NETWORK IN INNOVATIVE POLYELECTROLYTES FOR ENERGY AND ENVIRONMENT
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] CE - Commission Européenne [BE] The Wallenberg Academy KAW - Knut and Alice Wallenberg Foundation [SE] [BE]
