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Mixed Low-Dimensional Nanomaterial: 2D Ultranarrow MoS 2 Inorganic Nanoribbons Encapsulated in Quasi-1D Carbon Nanotubes

2010; American Chemical Society; Volume: 132; Issue: 39 Linguagem: Inglês

10.1021/ja1058026

1943-2984

Zhiyong Wang, Hong Li, Zheng Liu, Zujin Shi, Jing Lu, Kazu Suenaga, Soon‐Kil Joung, Toshiya Okazaki, Zhennan Gu, Jing Zhou, Zhengxiang Gao, Guangping Li, Stefano Sanvito, Enge Wang, Sumio Iijima,

Quantum Dots Synthesis And Properties

Quasi-one-dimensional nanotubes and two-dimensional nanoribbons are two fundamental forms of nanostructures, and integrating them into a novel mixed low-dimensional nanomaterial is fascinating and challenging. We have synthesized a stable mixed low-dimensional nanomaterial consisting of MoS2 inorganic nanoribbons encapsulated in carbon nanotubes (which we call nanoburritos). This route can be extended to the synthesis of nanoburritos composed of other ultranarrow transition-metal chalcogenide nanoribbons and carbon nanotubes. The widths of previously synthesized MoS2 ribbons are greater than 50 nm, while the encapsulated MoS2 nanoribbons have uniform widths down to 1−4 nm and layer numbers down to 1−3, depending on the nanotube diameter. The edges of the MoS2 nanoribbons have been identified as zigzag-shaped using both high-resolution transmission electron microscopy and density functional theory calculations.