中文摘要：

转变金属 dichalcogenide nanodots (ND ) 收到了可观的兴趣。我们由在 oleylamine 把铝 pentachloride 和 L 半胱氨酸用作先锋为瞬间 ₂ ND 报导一条灵巧的自底向上的合成线路。有从 2.2 ～ 5.3 nm 的狭窄的尺寸分布的 ND 的合成，被控制反应时间定制。因为它的涂层特征， oleyalmine 导致 ND 的一致性和 monodispersity。而且， ND 综合了有大特定的表面区域提供活跃地点。Graphene 拥有突出的电导率。联合二材料的优点，因为 2D， 0D/2D 材料展出优异电气化学的性能为离子吸附，精力存储，和变换的可渗透的隧道。同样准备的瞬间 ₂/rGO (~ 2.2 nm ) 显示出 220 mAhroscopy 分析的一个稳定的能力。与另外的报导金属 oxide/CN composites 比较，有 TiO ₂ nanoparticles 的 ultrathin CN-NSs 层的强壮的相互作用制止他们的重新叠，哪个导致 234.0 m ² 的一个大特定的表面区域吗？

英文摘要：

Transition metal dichalcogenide nanodots （NDs） have received considerable interest. We report a facile bottom-up synthetic route for MoS2 NDs by using molybdenum pentachloride and L-cysteine as precursors in oleylamine. The synthesis of NDs with a narrow size distribution ranging from 2.2 to 5.3 nm, was tailored by controlling the reaction time. Because of its coating characteristics, oleyalmine leads to uniformity and monodispersity of the NDs. Moreover, the NDs synthesized have large specific surface areas providing active sites. Graphene possesses outstanding conductivity. Combining the advantages of the two materials, the 0D/2D material exhibits superior electrochemical performance because of the 2D permeable channels for ion adsorption, energy storage, and conversion. The as-prepared MoS2/rGO （-2.2 nm） showed a stable capacity of 220 mAh.g-1 after 10,000 cycles at the current density of 20 A.g-1. Furthermore, a reversible capacity -140 mAh·g-1 was obtained at a much higher current density of 40 A.g-L Additionally, this composite exhibited superior catalytic performance evidenced by a small overpotential （222 mV） to afford 10 mA.cm-2, and a small Tafel slope （59.8 mV-decade-1） with good acid-stability. The facile approach may pave the way for the preparation of NDs with these nanostructures for numerous applications.