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Issue 81, 2016
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Superior electrochemical performance of N-doped nanocrystalline FeF3/C with a single-step solid-state process

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Abstract

FeF3 is a promising cathode material for lithium ion batteries but its poor electronic conductivity makes it non-practical. Here, we significantly improve the electrochemical activity of FeF3 by reducing the strong ionic character of Fe–F with the replacement of some F with N atoms. N-doped nanocrystalline FeF3/C achieves the best electrochemical performance among FeF3 compounds reported to date: ∼95 mA h g−1 at 21.1C discharge rate for 250 cycles. The results illustrate that the poor electronic conductivity of metal fluorides can be controlled by doping and this enables FeF3 or metal fluorides to be practically utilized in possible applications including energy conversion and storage.

Graphical abstract: Superior electrochemical performance of N-doped nanocrystalline FeF3/C with a single-step solid-state process

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Publication details

The article was received on 09 Aug 2016, accepted on 12 Sep 2016 and first published on 12 Sep 2016


Article type: Communication
DOI: 10.1039/C6CC06556B
Citation: Chem. Commun., 2016,52, 12100-12103
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    Superior electrochemical performance of N-doped nanocrystalline FeF3/C with a single-step solid-state process

    J. Lee and B. Kang, Chem. Commun., 2016, 52, 12100
    DOI: 10.1039/C6CC06556B

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