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Polystyrene as Graphene Film and 3D Graphene Sponge Precursor.

Nanomaterials (Basel, Switzerland) (2019-01-19)
Alejandra Rendón-Patiño, Jinan Niu, Antonio Doménech-Carbó, Hermenegildo García, Ana Primo
ABSTRACT

Polystyrene as a thin film on arbitrary substrates or pellets form defective graphene/graphitic films or powders that can be dispersed in water and organic solvents. The materials were characterized by visible absorption, Raman and X-ray photoelectron spectroscopy, electron and atomic force microscopy, and electrochemistry. Raman spectra of these materials showed the presence of the expected 2D, G, and D peaks at 2750, 1590, and 1350 cm-1, respectively. The relative intensity of the G versus the D peak was taken as a quantitative indicator of the density of defects in the G layer.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Polystyrene, average Mw ~280,000 by GPC