Abstract In this study, Melamine functionalized graphene oxide (FGO-Melamine) was synthesized by chemical route. The prepared functionalized graphene oxide was characterized by different analytical techniques such as FT-IR, Raman spectroscopy, thermogravimetry coupled with mass spectrometry (TG-MS), X-Ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), and X-ray photoelectron spectroscopy (XPS). To improve electrochemical properties of polyorthoaminophenol (POAP), the electropolymerized POAP/FGO-Melamine films, employed as an active electrode regarding electrochemical performance. In terms of electrochemical measurements, galvanostatic charge–discharge evaluation, EIS (electrochemical impedance spectroscopy) and CV (cyclic voltammetry) were employed for conducting an enquiry into supercapacitive performance of nanocomposite of POAP/FGO-Melamine. This graphene-based electrode showed a specific capacitance (SC) by 273 F g−1 and high energy of 37.91 W kg−1 at power density of 500 W kg−1. The novel materials synthesized in the current work show higher efficiency compared to the carbon-based ones concerning redox reactions of capacitors consisting of good stability in the existence of aqueous electrolyte, large active surface area and ease synthesis method.

中文翻译：

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三聚氰胺功能化氧化石墨烯：合成、表征并考虑作为混合 POAP 聚合物的赝电容器电极材料

摘要 本研究采用化学方法合成了三聚氰胺功能化氧化石墨烯（FGO-Melamine）。制备的功能化氧化石墨烯通过不同的分析技术进行表征，如FT-IR、拉曼光谱、热重与质谱联用（TG-MS）、X射线衍射（XRD）、场发射扫描电子显微镜（FE-SEM）和 X 射线光电子能谱 (XPS)。为了提高聚邻氨基苯酚 (POAP) 的电化学性能，将电聚合的 POAP/FGO-三聚氰胺薄膜用作电化学性能方面的活性电极。在电化学测量、恒电流充放电评估方面，采用EIS（电化学阻抗谱）和CV（循环伏安法）对POAP/FGO-三聚氰胺纳米复合材料的超级电容性能进行调查。这种基于石墨烯的电极在 500 W kg-1 的功率密度下显示出 273 F g-1 的比电容 (SC) 和 37.91 W kg-1 的高能量。当前工作中合成的新型材料与碳基材料相比，在电容器的氧化还原反应方面表现出更高的效率，包括在水性电解质存在下良好的稳定性、大的活性表面积和易于合成的方法。