Nanocarved MoS<sub>2</sub>-MoO<sub>2</sub> Hybrids Fabricated Using in Situ Grown MoS<sub>2</sub> as Nanomasks.
basic_science · Level V
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- Record sourced from PubMed, PMID 27732777.
- Also identified by DOI 10.1021/acsnano.6b04643.
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Abstract
The morphology and hybridization of nanostructures are crucial to achieve properties for various applications. An in situ grown three-dimensional (3D) MoS<sub>2</sub> nanomask has been adopted to control the morphology and hybridization of molybdenum compounds. The in situ generated MoS<sub>2</sub> mask on MoO<sub>3</sub> nanobelt surfaces allowed us to fabricate a 3D c-MoO<sub>2</sub>@MoS<sub>2</sub> hybrid nanostructure, in which c-MoO<sub>2</sub> is a carved MoO<sub>2</sub> nanobelt with a well-distributed hole pattern. The nanomasks have been controlled by adjusting the alignments of MoS<sub>2</sub>. The exposed MoO<sub>2</sub> surfaces of c-MoO<sub>2</sub>@MoS<sub>2</sub> were further sulfurated to give cw-MoO<sub>2</sub>@MoS<sub>2</sub>, in which all surfaces of MoO<sub>2</sub> are wrapped by a few layers of MoS<sub>2</sub>. The structure synergistically enhanced the electrochemical performances of MoO<sub>2</sub> and MoS<sub>2</sub>, especially at high current rates. Reversible capacities of 1418 and 295 mAh/g after 115 and 300 cycles still remained for the cw-MoO<sub>2</sub>@MoS<sub>2</sub> anodes at current rates of 1 and 10 A/g, respectively.