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Issue 21, 2013
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Poly(ionic liquid)-derived nitrogen-doped hollow carbon spheres: synthesis and loading with Fe2O3 for high-performance lithium ion batteries

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Abstract

Porous nitrogen-doped hollow carbon spheres (NHCSs) with tailored particle size, nitrogen content and wall thickness were prepared by grafting a thin layer of poly(ionic liquid) as carbon precursor onto silica particle surface followed by carbonization and template removal. In the next step, Fe2O3 nanoparticles were anchored onto the NHCSs via an impregnation-thermal decomposition route using Fe(NO3)3 as iron source. The as-synthesized Fe2O3–NHCS composite was utilized as the anode material for a lithium-ion battery, which exhibited a high reversible capacity of 1120 mAh g−1 at a rate of 100 mA g−1, and a coulombic efficiency of ∼98% at a rate of 500 mA g−1 after 65 cycles.

Graphical abstract: Poly(ionic liquid)-derived nitrogen-doped hollow carbon spheres: synthesis and loading with Fe2O3 for high-performance lithium ion batteries

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Supplementary files

Article information


Submitted
25 Nov 2012
Accepted
18 Mar 2013
First published
19 Mar 2013

This article is Open Access

RSC Adv., 2013,3, 7979-7986
Article type
Paper

Poly(ionic liquid)-derived nitrogen-doped hollow carbon spheres: synthesis and loading with Fe2O3 for high-performance lithium ion batteries

J. Balach, H. Wu, F. Polzer, H. Kirmse, Q. Zhao, Z. Wei and J. Yuan, RSC Adv., 2013, 3, 7979
DOI: 10.1039/C3RA41229F

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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