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Liquid exfoliation of mechanochemically nanostructured tungsten disulfide to a graphene-like state

机译：将机械化学纳米结构钨钨酸的液体去硫化到石墨烯样状态

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The possibility of the efficient preparation of graphene-like 1H-WS2 by the primary solventless nanostructuration of bulk 2H-WS2 by means of its mechanochemical treatment in the presence of a chemically inert agent (NaCl) and the subsequent liquid exfoliation of the nanostructured 2H-WS2 in an organic solvent is shown for the first time. The shear stresses generated during the grinding of the WS2/NaCl mixture caused the formation of WS2 particles with a reduced number of layers, while the stresses normal to their surface led to their cracking and a significant reduction in lateral size. The graphene-like morphology of the 1H-WS2 nanoparticles in the prepared dispersions is confirmed by atomic force microscopy and Raman spectroscopy. The semiconducting character of 1H-WS2 is supported by electron absorption and x-ray photoelectron spectroscopy data.
机译：通过在化学惰性剂（NaCl）的存在下，通过其机械化学处理和纳米结构的随后的液体剥离，通过其基体2H-Ws2的初级溶剂纳米结构在底部溶剂纳米结构中高效制备石墨烯纳米结构的可能性。 第一次显示有机溶剂中的WS2。 在研磨WS2 / NaCl混合物期间产生的剪切应力使得形成具有减少数量的层的WS2颗粒，而其表面的应力导致其裂缝和横向尺寸的显着降低。 通过原子力显微镜和拉曼光谱证实了制备的分散体中的1H-WS2纳米颗粒的石墨烯样形态。 通过电子吸收和X射线光电子体光谱数据支持1H-WS2的半导体特征。

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