It is well known that reduced graphene oxide/polyaniline (rGO/PANI) composites exhibit extremely excellent electrochemical performance. However, in the preparation of this composite, the toxic and harmful properties of the reducing agent and the re-stacking of rGO sheets have become an obstacle. To solve these problems, in this study, with green natural tea polyphenols (GTPs) was used as the reducing agent and stabilizer of graphene oxide (TrGO), through introduced amine groups into the surface of TrGO by Mannich reaction acted as anchors for in-situ polymerization of polyaniline (PANI), we synthesized a high-electrochemical performance TrGO/PANI composites. Fourier Transform Infrared Spectrometer (FT-IR), X-ray diffraction, Raman spectra and electron microscope were used to characterize the morphology and structure of the composite, and the electrochemical performance of the composite were tested by cyclic voltammetry, galvanostatic charge-discharge and AC impedance spectroscopy. The results exhibited that the covalently grafted TrGO/PANI composites showed excellent electrochemical performance. The areal capacitance at 0.5 mA cm⁻² is 732 mF cm⁻², which is better than pristine graphene oxide and polyaniline. The excellent electrochemical performance of the composites can be attributed to the effect of covalent synergy between the TrGO and PANI, indicating the great potential for supercapacitors.

众所周知，还原的氧化石墨烯/聚苯胺（rGO / PANI）复合材料表现出极好的电化学性能。然而，在该复合材料的制备中，还原剂的毒性和有害性质以及rGO片材的重新堆叠已经成为障碍。为了解决这些问题，在这项研究中，以绿色天然茶多酚（GTPs）为氧化石墨烯（TrGO）的还原剂和稳定剂，通过曼尼希反应将胺基引入TrGO的表面，充当了In-in的锚。原位聚合聚苯胺（PANI），我们合成了高电化学性能的TrGO / PANI复合材料。使用傅立叶变换红外光谱仪（FT-IR），X射线衍射，拉曼光谱和电子显微镜表征了复合材料的形貌和结构，并通过循环伏安法，恒电流充放电和交流阻抗谱测试了复合材料的电化学性能。结果表明，共价接枝的TrGO / PANI复合材料表现出优异的电化学性能。0.5 mA cm时的面电容^-2为732 mF cm ^-2，比原始氧化石墨烯和聚苯胺更好。复合材料出色的电化学性能可归因于TrGO和PANI之间的共价协同作用，表明超级电容器具有巨大潜力。