Abstract In this work, the graphene was synthesized by electrochemical exfoliation method, which was used to prepare the polyaniline-graphene composite film (PANI-GR) onto fluorine doped tin oxide (FTO) electrode by chronoamperometry technic at monomer oxidation potential 0.8 V vs. SCE. During the electropolymerization, the incorporation of the synthetized graphene into polyaniline matrix was assured by agitation of the electrolyte (10−2 M Ani/1 M H2SO4) containing different mass of graphene (1, 2 and 3 mg). By taking the advantages of the high conductivity of GR and the pseudocapacitance of PANI, the FTO/PANI-GR composite film was taken as an example for the application to the supercapacitor electrode materials. The morphology and structure of FTO/PANI and FTO/PANI-GR were characterized by different technics SEM, XRD, FTIR, Raman spectroscopy and UV–visible spectroscopy. The electrochemical performance was evaluated by cyclic voltammetry, galvanostatic charge-discharge tests and electrochemical impedance spectroscopy (EIS). The obtained specific capacitance for the PANI material alone is about 176.29 F g−1 this value was increased up to 305.57 F g−1 for the composite film PANI-GR 3 mg at 5 mV s−1.

中文翻译：

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聚苯胺剥离石墨烯复合薄膜的电化学合成及其电容特性

摘要 本工作采用电化学剥离法合成石墨烯，在单体氧化电位为 0.8 V vs. 0.8 V 的条件下，采用计时电流法技术在氟掺杂氧化锡 (FTO) 电极上制备聚苯胺-石墨烯复合膜 (PANI-GR)。分会。在电聚合过程中，通过搅拌含有不同质量石墨烯（1、2 和 3 毫克）的电解质（10-2 M Ani/1 M H2SO4）来确保将合成的石墨烯并入聚苯胺基质中。利用GR的高电导率和PANI的赝电容优势，以FTO/PANI-GR复合薄膜为例，应用于超级电容器电极材料。FTO/PANI和FTO/PANI-GR的形貌和结构通过不同工艺的SEM、XRD、FTIR、拉曼光谱和紫外可见光谱。通过循环伏安法、恒电流充放电测试和电化学阻抗谱（EIS）评估电化学性能。单独使用 PANI 材料获得的比电容约为 176.29 F g-1，对于复合膜 PANI-GR 3 mg，在 5 mV s-1 时该值增加到 305.57 F g-1。