Abstract
Direct exfoliating is a safer method for graphene preparation. However, it is important to synthesize a graphene with minimum structural defects since they will influence the properties of the devices. This paper focuses on two types of graphite exfoliation techniques, electrochemical and sonication, for the preparation of graphene oxides. The quality of the graphene oxides was studied using Raman Spectroscopy while the morphology was investigated by field emission scanning electron microscopy (FESEM). The results suggest that the graphene oxides synthesized using the electrochemical technique has the minimum number of layers while graphene oxides obtained from the sonication technique has the minimum defects.
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