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Poly(ionic liquid)-Derived N-Doped Carbons with Hierarchical Porosity for Lithium- and Sodium-Ion Batteries
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Number of Authors: 92019 (English)In: Macromolecular rapid communications, ISSN 1022-1336, E-ISSN 1521-3927, Vol. 40, no 1, article id 1800545Article in journal (Refereed) Published
Abstract [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 m(2) g(-1) and a hierarchically meso- and macroporous structure while keeping a nitrogen content of 2.6wt%. Such NPCs deliver a high reversible charge/discharge capacity of 1013 mA h g(-1) over 200 cycles at 0.4A g(-1) for lithium-ion batteries, and show a good capacity of 204 mAh g(-1) over 100 cycles at 0.1A g(-1) for sodium-ion batteries.

Place, publisher, year, edition, pages
2019. Vol. 40, no 1, article id 1800545
Keywords [en]
lithium-ion batteries, poly(ionic liquid), porous carbon, sodium-ion batteries
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-166610DOI: 10.1002/marc.201800545ISI: 000459027600011PubMedID: 30284334OAI: oai:DiVA.org:su-166610DiVA, id: diva2:1299185
Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-03-26Bibliographically approved

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Yuan, JiayinGong, JiangDetrembleur, Christophe
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Department of Materials and Environmental Chemistry (MMK)
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