The synthesis of ultrathin rhenium disulfide (ReS₂) nanoribbons within single-walled carbon nanotubes (SWNTs) has been established. Dirhenium decacarbonyl complex is encapsulated into the SWNTs to provide a source of confined rhenium atoms, which readily react with iodine to form discrete nm-sized clusters of rhenium iodide [Re₆I₁₄]²⁻ embedded in the nanotubes. The final step of the synthesis is accomplished by admitting hydrogen sulfide gas into nano test tubes, yielding twisted nanoribbons of rhenium disulfide encapsulated in carbon nanotubes, ReS₂@SWNTs. The width, structure, and composition of rhenium disulfide nanoribbons are strictly controlled by the extreme confinement of the host-SWNT. A holistic analytical approach combining complementary imaging and analysis methods is used at each synthetic step to elucidate the structure and composition of the guest material and reveal the role of the SWNT contributing towards the electronic interactions with encapsulated inorganic structures. As ReS₂ nanoribbons are expected to retain the electronic properties of the bulk material, such as direct bandgap, the low dimensional form of this material can be of interest for use in nanoscale electronic devices.

已经建立了在单壁碳纳米管 (SWNT) 内合成超薄二硫化铼 (ReS ₂ ) 纳米带。十羰基二铼配合物被封装到 SWNT 中以提供受限铼原子的来源，这些铼原子很容易与碘反应形成离散的纳米级碘化铼 [Re ₆ I ₁₄ ] ^2-簇，嵌入纳米管中。合成的最后一步是通过将硫化氢气体引入纳米试管中来完成的，从而产生包裹在碳纳米管中的扭曲的二硫化铼纳米带，ReS ₂@SWNT。二硫化铼纳米带的宽度、结构和组成受到主体-SWNT 的极端限制的严格控制。在每个合成步骤中都使用结合互补成像和分析方法的整体分析方法来阐明客体材料的结构和组成，并揭示 SWNT 在与封装无机结构的电子相互作用中的作用。由于 ReS ₂纳米带有望保留块状材料的电子特性，例如直接带隙，因此该材料的低维形式可用于纳米级电子器件。