Oxidation suppression during hydrothermal phase reversion allows synthesis of monolayer semiconducting MoS2 in stable aqueous suspension
| Autor: | Andrew A. Peterson, Yin-Jia Zhang, Muchun Liu, Robert H. Hurt, Zhongying Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Stereochemistry Reversion 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Hydrothermal circulation 0104 chemical sciences Corrosion Metal Chemical engineering Phase (matter) visual_art Monolayer visual_art.visual_art_medium General Materials Science Reactivity (chemistry) Wet oxidation 0210 nano-technology |
| Zdroj: | Nanoscale. 9:5398-5403 |
| ISSN: | 2040-3372 2040-3364 |
| DOI: | 10.1039/c7nr01193h |
| Popis: | This letter demonstrates a simple method to achieve high-yields of 1H semiconducting MoS2 monolayers in concentrated, colloidally-stable aqueous suspension. The method is based on oxidation suppression during the hydrothermal processing step used for metal-to-semiconductor phase reversion. Accompanying DFT calculations on elementary steps in the MoS2 wet oxidation reaction suggest that a two-site corrosion mechanism is responsible for the observed high reactivity and low stability of 1T metallic MoS2. |
| Databáze: | OpenAIRE |
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