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Issue 29, 2016
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Direct planting of ultrafine MoO2+δ nanoparticles in carbon nanofibers by electrospinning: self-supported mats as binder-free and long-life anodes for lithium-ion batteries

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Abstract

Three-dimensional (3D) interconnected carbon nanofibrous mats containing well-dispersed MoO2+δ nanocrystals are fabricated through a facile electrospinning route followed by thermal treatment in N2. The resulting nanostructured monolithic hybrid mat made of C/MoO2+δ nanofibers exhibits superior Li-storage performances, when evaluated as a free-standing anode material. At a current density of 200 mA g−1, a reversible capacity as high as 876.9 mA h g−1 is achieved after 250 cycles. A capacity of 447.9 mA h g−1 could still be maintained after 1000 cycles even at a high current density of 2000 mA g−1, indicating high rate capability and cyclability. The attractive electrochemical performances of the as-obtained 3D C/MoO2+δ networks may benefit from the synergistic effects of the unique nanoarchitectures and the integrity of the electrodes. Monodispersed MoO2+δ nanocrystals encapsulated in carbon nanofibers not only provide interfacial storage but also improve the transport kinetics of electrons and lithium ions.

Graphical abstract: Direct planting of ultrafine MoO2+δ nanoparticles in carbon nanofibers by electrospinning: self-supported mats as binder-free and long-life anodes for lithium-ion batteries

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Publication details

The article was received on 17 Mar 2016, accepted on 24 Jun 2016 and first published on 27 Jun 2016


Article type: Paper
DOI: 10.1039/C6CP01806H
Citation: Phys. Chem. Chem. Phys., 2016,18, 19832-19837
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    Direct planting of ultrafine MoO2+δ nanoparticles in carbon nanofibers by electrospinning: self-supported mats as binder-free and long-life anodes for lithium-ion batteries

    X. Liu, H. Xu, Y. Huang and X. Hu, Phys. Chem. Chem. Phys., 2016, 18, 19832
    DOI: 10.1039/C6CP01806H

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