Foam Flows in Turbulent Liquid Exfoliation of Layered Materials and Implications for Graphene Production and Inline Characterisation
Diego Tomohisa Pérez-Álvarez,
Philip Davies,
Jason Stafford
Abstract:Surfactants are often used to stabilise two-dimensional (2D) materials in environmentally friendly solvents such as water. Aqueous-surfactant solutions prevent agglomeration of nanosheets through steric and electrostatic repulsion, facilitating the production of high concentration nanomaterial dispersions. Turbulent, shear-assisted liquid exfoliation of layered precursor materials produces defectfree nanosheets by promoting mixing and generating sufficiently high shear rates to overcome outof-plane van der Waa… Show more
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