Preparation and Characterization of Redu

In this study, we report the synthesis and characterization of reduced graphene nanosheets derived from pre-exfoliated graphite flakes. The process commenced with pre-exfoliation of pristine graphite flakes to create graphite nanoplatelets through treatment with acetic acid. These nanoplatelets were then subjected to Hummer’s method to generate graphite oxide sheets, which were subsequently exfoliated into graphene nanosheets via ultrasonication and reduction techniques. Characterization of the resulting nanosheets was performed using advanced techniques including X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The results indicated that the pre-exfoliation process significantly affected the formation of both graphite oxide sheets and graphene nanosheets. Furthermore, the prepared graphene nanosheets exhibited a greatly improved electrical resistance of 200 Ω/sq when utilized in conductive material preparation, highlighting their potential application in various industrial fields.