Production of few-layer graphene by wet media milling using organic solvents and different types of graphite

摘要: Abstract One of the main challenges in exploitation nanomaterials is their production at low cost. Mechanical milling an alternative for nanomaterials, such as graphene. In this work we have studied effect different solvents (methanol, ethanol, acetone, hexane, toluene and xylene) on graphene by attrition graphite. Among tested, methanol showed to be able produce sheets more efficiently. Computer modeling suggests that although acetone a weaker interaction with (3.95 7.41 kcal/mol, respectively) compared xylene (12.73 kcal/mol), they higher Gibbs free energy (6.46, 3.81 0.33 kcal/mol methanol, xylene, respectively), suggesting mobility its surface, thus facilitating exfoliation The was corroborated Raman spectroscopy transmission electron microscopy, showing few layers (