In this study, the nanocomposite of manganese oxide (Mn₂O₃)/graphene oxide (GO) is deposited on a current collector using the single-nozzle electrospinning method. The effects of the GO concentration (volume %) of the Mn₂O₃ nanofibers (NFs) on the structural, morphological, and electrochemical properties are investigated systematically. The presence of GO in the Mn₂O₃ NF samples is confirmed using X-ray diffraction patterns, Raman spectroscopy, and X-ray photoelectron spectroscopy, where sp² hybridization can be observed. The influence of the GO (volume %) in the Mn₂O₃ NF samples on the contribution of the capacitive and diffusion-controlled process has been calculated mathematically. GO at 5 vol% in the Mn₂O₃ sample exhibited a high specific capacitance of 588 Fg⁻¹ at a current density of 0.5 mAcm⁻² (2.5 Ag⁻¹) in 1 M aqueous electrolyte with 98% cyclic stability up to 1000 cycles. Furthermore, a coin cell hybrid device was assembled using Mn₂O₃/GO and a Li-chip as an electrode, 1 M LiPF₆ as an electrolyte, and a polypropylene sheet as a separator. This device exhibited a capacitance, an energy density, and a power density of 0.33 F (specific capacitance of 740 Fg⁻¹), 925 Whkg⁻¹, and 3.3 kWkg⁻¹, respectively at a current density of 1 mAcm⁻² (2.5 Ag⁻¹) along with 90% retention in capacitance measured till 5000 cycles.

在这项研究中，使用单喷嘴静电纺丝方法将氧化锰 (Mn ₂ O ₃ )/氧化石墨烯 (GO)的纳米复合材料沉积在集电器上。系统地研究了 Mn ₂ O ₃纳米纤维 (NF)的 GO 浓度（体积 %）对结构、形态和电化学性能的影响。使用 X 射线衍射图、拉曼光谱和 X 射线光电子光谱证实了 Mn ₂ O ₃ NF 样品中存在 GO ，其中可以观察到sp ²杂化。Mn ₂ O _{3 中}GO（体积%）的影响NF 样本对电容和扩散控制过程的贡献已进行数学计算。Mn ₂ O ₃样品中 5 vol% 的 GO 在0.5 mAcm ^-2 (2.5 Ag ^-1 )的电流密度下在 1 M 水性电解质中表现出 588 Fg ^-1的高比电容，循环稳定性高达 1000 年的 98%循环。此外，使用Mn ₂ O ₃ /GO 和锂芯片作为电极、1 M LiPF ₆作为电解质和聚丙烯片作为隔板组装纽扣电池混合装置。该器件的电容、能量密度和功率密度为 0.33 F（比电容为 740 Fg ^-1)、925 Whkg ^-1和 3.3 kWkg ^-1，分别在 1 mAcm ^-2 (2.5 Ag ^-1 )的电流密度下以及测量到 5000 次循环的 90% 电容保持率。