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

Phys Chem Chem Phys

MackGraphe - Mackenzie Institute for Research in Graphene and Nanotechnologies, Mackenzie Presbyterian University, Rua da Consolação, 896, São Paulo SP 01302-907, Brazil.

Published: January 2020

AI Article Synopsis

  • Molybdenum disulfide (MoS) is a valuable 2D material used in various fields, including nanoelectronics and biotechnology.
  • Its eco-friendly and cost-effective production via liquid-phase exfoliation in water is explored in this research.
  • The study combines experimental methods and simulations to explain why MoS is stable in a water medium, proposing an edge-functionalization hypothesis for its solvent properties.

Article Abstract

Molybdenum disulfide is a highly esteemed 2D material with interesting applications in nanoelectronics, composites, biotechnology and beyond. Its production through liquid-phase exfoliation in HO is low-cost and eco-friendly. Herein, we present a detailed experimental and theoretical investigation seeking to explain the peculiar stability of MoS in HO 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 MoS has been demonstrated.

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Source
http://dx.doi.org/10.1039/c9cp06422bDOI Listing

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