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Ionic solutions of two-dimensional materials
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DOI：10.1038/NCHEM.2650.png)
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摘要
En 中文
Strategies for forming liquid dispersions of nanomaterials typically focus on retarding reaggregation, for example via surface modification, as opposed to promoting the thermodynamically driven dissolution common for molecule-sized species. Here we demonstrate the true dissolution of a wide range of important 2D nanomaterials by forming layered material salts that spontaneously dissolve in polar solvents yielding ionic solutions. The benign dissolution advantageously maintains the morphology of the starting material, is stable against reaggregation and can achieve solutions containing exclusively individualized monolayers. Importantly, the charge on the anionic nanosheet solutes is reversible, enables targeted deposition over large areas via electroplating and can initiate novel self-assembly upon drying. Our findings thus reveal a unique solution-like behaviour for 2D materials that enables their scalable production and controlled manipulation.
Keyword:
LIQUID EXFOLIATION
GRAPHENE PLATELETS
NANOSHEETS
INTERCALATION
GRAPHITE
PHOTOLUMINESCENCE
CRYSTALS
SCIENCE
SHEETS
MOS2
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20.2
论文数:
4.4K
被引数:
4.8W
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