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Issue 29, 2016
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Three-dimensional nanotubes composed of carbon-anchored ultrathin MoS2 nanosheets with enhanced lithium storage

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Abstract

MoS2 nanotubes (denoted as MoS2 NTs) assembled from well-aligned amorphous carbon-modified ultrathin MoS2 nanosheets (denoted as MoS2 NT@C) were successfully fabricated via a facile solvothermal method combined with subsequent annealing treatment. With the assistance of octylamine as a solvent and carbon source, interconnected MoS2 nanosheets (denoted as MoS2 NSs) can assemble into hierarchical MoS2 NTs. Such a hybrid nanostructure can effectively facilitate charge transport and accommodate volume variation upon prolonged charge/discharge cycling for reversible lithium storage. As a result, the MoS2 NT@C composite manifests a very stable high reversible capacity of around 1351 mA h g−1 at a current density of 100 mA g−1; even after 150 cycles, the electrode reaches a capacity of 1106 mA h g−1 and it retains a reversible capacity of 650 mA h g−1 after the 10th cycle at a current density of 3 A g−1, all of which indicate that the MoS2 NT@C nanocomposite is a promising negative electrode material for high-energy lithium ion batteries.

Graphical abstract: Three-dimensional nanotubes composed of carbon-anchored ultrathin MoS2 nanosheets with enhanced lithium storage

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Publication details

The article was received on 06 May 2016, accepted on 27 Jun 2016 and first published on 30 Jun 2016


Article type: Paper
DOI: 10.1039/C6CP03044K
Phys. Chem. Chem. Phys., 2016,18, 19792-19797

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    Three-dimensional nanotubes composed of carbon-anchored ultrathin MoS2 nanosheets with enhanced lithium storage

    F. Yi, Y. Niu, S. Liu, J. Hou, S. Bao and M. Xu, Phys. Chem. Chem. Phys., 2016, 18, 19792
    DOI: 10.1039/C6CP03044K

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