Key points are not available for this paper at this time.
A simple and scalable exfoliation approach is developed to produce high-quality single-layer graphene sheets without the use of toxic reduction agents of expensive solvents. Graphite powders are exfoliated in a water solution of pyrene derivatives, which act as dispersion agents, healing agents, and electric “glue” during the thermal annealing process.
Zhang et al. (Thu,) studied this question.