Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 45, Pages 17764-17772Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta06741g
Keywords
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Funding
- National Science Foundation of China [51272147]
- Natural Science Foundation of Shaanxi Province [2015JM5208]
- Graduate Innovation Fund of Shaanxi University of Science and Technology
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One dimensional (1D) hierarchical core-shell structures (MoO3@MoS2) constructed by perpendicular growth of few-layered MoS2 nanosheets on MoO3 nanowires were successfully fabricated by a direct anion-exchange reaction of the inorganic MoO3 nanowire precursor. The morphology and structure of the products can be controlled by adjusting the hybrid solvent in the anion-exchange process, and the contents of MoS2 and MoO3 in the core-shell nanowires can be easily tuned by adding a varied amount of thiourea. Although the organic-inorganic precursor was not used, the 1D structure of the inorganic MoO3 nanowire was still maintained. An amazing feature of the MoO3@MoS2 nanowire was its 1D hierarchical core-shell structure integrated with two-dimensional (2D) ultrathin MoS2 nanosheets and 1D MoO3 nanowires. The numerous few-layered MoS2 nanosheets grew perpendicularly on the MoO3 nanowires, providing plenty of diffusion channels for Li+ during the insertion/extraction process. Due to the abundant hardly stacked MoS2 nanosheets and the synergistic effects between MoO3 nanowires and MoS2 nanosheets, this unique MoO3@MoS2 nanowire showed greatly improved Li+ storage properties when evaluated as an anode material for lithium ion batteries (LIBs).
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