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Issue 2, 2012
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Ultrafine MoO2nanoparticles embedded in a carbon matrix as a high-capacity and long-life anode for lithium-ion batteries

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Abstract

A composite of ultrafine MoO2 nanoparticles homogeneously distributed in a carbon matrix has been fabricated on a large scale by an easy impregnation–reduction–carbonization route. Firstly, a cotton/PMA composite was formed by incorporating phosphomolybdate clusters into a cotton framework. Then it was treated in a H2/Ar atmosphere at 500 °C for 5 h and in situ reduced/carbonized into a black monolith comprising ultrafine MoO2 nanoparticles (<2 nm) embedded in the carbon matrix. The electrochemical tests demonstrate that the as-formed MoO2/C hybrid exhibits high capacity and excellent capacity retention as an anode material for lithium-ion batteries. The specific discharge capacity is as high as 1207 mA h g−1 in the first cycle and 734 mA h g−1 over 350 cycles at a current density of 50 mA g−1.

Graphical abstract: Ultrafine MoO2 nanoparticles embedded in a carbon matrix as a high-capacity and long-life anode for lithium-ion batteries

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Publication details

The article was received on 21 Sep 2011, accepted on 12 Oct 2011 and first published on 08 Nov 2011


Article type: Paper
DOI: 10.1039/C1JM14701C
J. Mater. Chem., 2012,22, 425-431

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    Ultrafine MoO2 nanoparticles embedded in a carbon matrix as a high-capacity and long-life anode for lithium-ion batteries

    Y. Sun, X. Hu, W. Luo and Y. Huang, J. Mater. Chem., 2012, 22, 425
    DOI: 10.1039/C1JM14701C

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