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Fig. 8 | Nanoscale Research Letters

Fig. 8

From: High-Yield Preparation and Electrochemical Properties of Few-Layer MoS2 Nanosheets by Exfoliating Natural Molybdenite Powders Directly via a Coupled Ultrasonication-Milling Process

Fig. 8

The effects of exfoliating parameters on the supernatant concentration (C ex), exfoliation rate and yield of FL-MoS2 nanosheets from natural molybdenite powders: a–c the initial concentration of natural molybdenite (C in = 15–55 g L−1 when P u = 280 W, ω s = 2250 r.p.m, R pm = 1/2); (d–f) ultrasonic powers (P u = 200–350 W when C in = 45 g L−1, ω s = 2250 r.p.m, R pm = 1/2); g–i rotation speeds (ω s = 1500–2250 r.p.m when C in = 45 g L−1, P u = 280 W, R pm = 1/2); j–l molar ratios of PVP to MoS2 (R pm = 0–1 when C in = 45 g L−1, P u = 280 W, ω s = 2250 r.p.m)

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