How to Prepare Tungsten Disulfide Nanosheet?

How to prepare tungsten disulfide nanosheet? It is reported that tungsten disulfide (WS2) nanosheet powder can be prepared by mechanical peeling.

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Preparation of Tungsten Disulfide Nanosheets

Disperse the bulk commercial tungsten disulfide powder in 2-methylpyrrolidone at a feed liquid ratio of 1-2 mg/mL to obtain a dispersion of tungsten disulfide powder. Place the dispersion in a cell crusher and continue to crush for 20-40 min. After standing for 15-30 minutes, the solid was obtained after centrifugation, washed with ethanol for several times and then dried to obtain tungsten disulfide nanosheets. The obtained WS2 nanosheets have excellent optical properties, high corrosion resistance and structural stability, and are mainly used to fabricate a catalytic anode in a visible light-responsive low-temperature fuel cell.

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