Synthesis Graphene Electrochemical Exfoliation of Graphite

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Synthesis Graphene Electrochemical Exfoliation of Graphite ( synthesis-graphene-electrochemical-exfoliation-graphite )

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dispersion was left for 20 hour for the precipitation of thick graphitic flakes. The upper part of the dispersion was used for further characterization. One curious aspect observed in the present electrochemical exfoliation was that unlike acidic and ionic liquid electrolytes, the graphite anode did not swell significantly. Another interesting characteristic observed related to the fact that EG appeared like intact graphitic few layer sheets. The damaged edges, wrinkles etc. are often present for graphene produced through other methods. However, in the present method these were almost nonexistent. In fact the exfoliated graphene sheets often exhibited internal morphology of graphite. A typical example is shown in Fig. 2. The graphitic edges bordering graphene are marked. Fig. 2. The characterization for exfoliated graphene: (a) and (b) the low-magnification TEM images for graphene sheets on carbon holy grid. Fig. 3. HRTEM micrograph of exfoliated four layer graphene.

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