期刊
CHEMISTRY OF MATERIALS
卷 23, 期 17, 页码 3879-3885出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm200837g
关键词
inorganic nanosheets; layered materials; 2D crystals; MoS2; WS2
资金
- European Community [229284]
A new wet chemistry approach, based on low-temperature (360 degrees C) decomposition in oleylamine of single-source precursors containing both metal and sulfur, is proposed for the production of stable free-standing nanosheets of MoS2 and WS2. The one-pot synthesis permits high-quality 2D nanosheet crystals of MoS2 and WS2 to be obtained with a modular number of nanolayers for units. The layered materials obtained are covered by a dynamic protective coating of oleylamine that stabilizes the suspension, avoids aggregation and oxidation phenomena, and could be easily functionalized with other molecules or nanosystems to introduce new properties to the hybrid organic inorganic nanocomposite. The reaction products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), attenuated total reflectance Fourier transform infrared spectroscopy (ART-FTIR), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis coupled with mass spectrometry (TG-MS), and dynamic light scattering (DLS) for particle size distribution (PSD).
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