Graphene oxide (GO) was prepared from natural flaked graphite by using a modified Hummers method. The ultrasonication process was added to exfoliate Graphene oxide sheet and cut them into smaller pieces. Then, the aniline monomer was added into the system and the in situ polymerization of polyaniline was occurred after adding the oxidant, (NH4)2S2O8 (APS). The open cycle potential (OCP) curve was recorded during the in-situ polymerization. It was found that there is a significant reaction time delay on OCP，which indicated a delay in polymerization by using different courter ions such as HCl，HClO4, and H2SO4, as indicated in Figure 1. The resulting GO/Polyaniline composite was fully characterized by transmission electron microscopy (TEM), Atomic force microscope (AFM), Fourier transform infrared spectroscopy (FTIR), Raman spectra, Thermo Gravimetric Analyze (TGA) and fluorescence spectrometer. The corresponding industrial applications would be reported during the presentation.

Time delay of open cycle potential (OCP) measurement during the in-situ polymerization of polyaniline with graphene oxide nanosheets

249th National Meeting (2015)

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