Abstract
THE EFFECT OF VARIATION OF REACTIONAL PARAMETERS IN THE PREPARATION OF GRAPHENE BY OXIDATION AND REDUCTION OF GRAPHITE. This work shows the influence of several reactional parameters for obtaining graphene through successive steps of oxidation and exfoliation of bulk graphite (resulting in graphene oxide), followed by chemical reduction. The results showed that changes in temperature, reaction time, reducing agent and source of primary graphite lead to different surface compositions and stability in dispersion of graphene oxide. Also, the use of different reducing agents promoted different degrees of restoration of C=C bonds in the bidimensional structure of graphene.
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