Understanding the unorthodox stabilization of liquid phase exfoliated molybdenum disulfide (MoS2) in water medium.

Camila L C RodriguezPablo A R MuñozKatarzyna Z DonatoLeandro Seixas Rocha Ricardo Keitel DonatoGuilhermino J M Fechine

Published in: Physical chemistry chemical physics : PCCP (2019)

Molybdenum disulfide is a highly esteemed 2D material with interesting applications in nanoelectronics, composites, biotechnology and beyond. Its production through liquid-phase exfoliation in H2O is low-cost and eco-friendly. Herein, we present a detailed experimental and theoretical investigation seeking to explain the peculiar stability of MoS2 in H2O medium. By combining different microscopic (SEM, AFM and OM), spectrometric (Raman, UV-vis and AFM-FTIR), scattering (DLS) and ab initio simulation techniques, an edge-functionalization hypothesis for the excellent solvent properties of water for producing few-layer MoS2 has been demonstrated.

Keyphrases

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