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Preparation water dispersible reduced graphene oxide as ink materials for the flexible and wearable energy storage devices

We report a facile and highly-effective method to synthesize W-RGO (water dispersible reduced graphene oxide), and fabricate a textile cloth based flexible electrode using the obtained W-RGO as ink materials via the simple dipping and coating method. FTIR (Fourier transform infrared spectroscopy), XPS (X-ray photoelectron spectroscopy) and Raman spectroscopy were used to analyze the morphology and structure of the W-RGO samples. The results showed that the GO (graphene oxide) sheets had been successfully modified and reduced with ABS (3-Aminobenzene sulfonic acid) and Ascorbic Acid. In addition, the CV (cyclic voltammetry) was used to investigate the electrochemical performance with a two-electrode cell measurement, and the electrochemical data exhibited that the electrode displayed high areal capacitance of 70 mF cm-2 at the current density of 5 mA cm-2, and retained 94.3 % of the initial capacitance after 2000 cycles, which provide another new ways to fabricate the flexible and wearable energy storage devices.