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Issue 41, 2016
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Lamellar MoSe2 nanosheets embedded with MoO2 nanoparticles: novel hybrid nanostructures promoted excellent performances for lithium ion batteries

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Abstract

A carbon-free nanocomposite consisting of MoO2 nanoparticles embedded between MoSe2 nanosheets, named MoO2@MoSe2, has been synthesized and demonstrated excellent electrochemical properties for lithium ion batteries. In such a composite, MoSe2 nanosheets provide a flexible substrate for MoO2 nanoparticles; while MoO2 nanoparticles act as spacers to retain the desired active surface to electrolyte and also introduce metallic conduction. In addition, the heterojunctions at the interface between MoSe2 and MoO2 introduce a self-built electric field to promote the lithiation/delithiation process. As a result, such lamellar composite has a long cycling stability with a reversible capacity of 520.4 mA h gāˆ’1 at a current density of 2000 mA gāˆ’1 after 400 cycles and excellent rate performance, which are attributed to the synergistic combination of the two components in nanoscale.

Graphical abstract: Lamellar MoSe2 nanosheets embedded with MoO2 nanoparticles: novel hybrid nanostructures promoted excellent performances for lithium ion batteries

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Publication details

The article was received on 15 Jul 2016, accepted on 29 Sep 2016, published on 03 Oct 2016 and first published online on 03 Oct 2016


Article type: Paper
DOI: 10.1039/C6NR05584B
Citation: Nanoscale, 2016,8, 17902-17910
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    Lamellar MoSe2 nanosheets embedded with MoO2 nanoparticles: novel hybrid nanostructures promoted excellent performances for lithium ion batteries

    X. Zhao, J. Sui, F. Li, H. Fang, H. Wang, J. Li, W. Cai and G. Cao, Nanoscale, 2016, 8, 17902
    DOI: 10.1039/C6NR05584B

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