Present work demonstrates enhanced supercapacitive performance of CoO-rGO electrode using redox electrolyte. The long range electrostatic force developed during deposition of CoO-rGO composite thin film orient the molecules into the hexagonal crystal structure. The incorporated CoO particles into rGO nano-sheets make the structure more porous for the intercalation of the electrolyte ions through the electrode material. Additionally, 0.025 M K₃[Fe(CN)₆] + 0.025 M K₄[Fe(CN)₆] redox couple into KOH electrolyte enhances the supercapacitive performance than bare KOH electrolyte. The maximum specific capacitance of 1005 F g⁻¹ is observed due to the combined effect of K₃[Fe(CN)₆] and K₄[Fe(CN)₆] redox couple into KOH electrolyte. Also, energy density of 86.74 Wh kg⁻¹ at power density of 3.54 kW kg⁻¹ suggest potential application of CoO-rGO composite thin film in the development of high energy density supercapacitor based on redox active electrolyte.

当前的工作证明了使用氧化还原电解质增强了CoO-rGO电极的超电容性能。CoO-rGO复合薄膜沉积过程中产生的远距离静电力将分子定向为六方晶体结构。结合到rGO纳米片中的CoO颗粒使结构更加多孔，从而可通过电极材料插入电解质离子。此外，与KOH裸露电解质相比，将0.025 M K ₃ [Fe（CN）₆ ] + 0.025 M K ₄ [Fe（CN）₆ ]氧化还原偶合到KOH电解质中可增强超电容性能。的1005 F G的最大比电容^-1由于观察到K的组合效果₃的[Fe（CN）₆ ]和K ₄ [Fe（CN）₆ ]氧化还原偶合到KOH电解质中。此外，在功率密度为3.54 kW kg ^-1时的能量密度为86.74 Wh kg ^-1，暗示了CoO-rGO复合薄膜在基于氧化还原活性电解质的高能量密度超级电容器的开发中的潜在应用。