Manganese(III) oxide/mesoporous carbon (Mn₂O₃/MPC) composite films for supercapacitor electrodes have been synthesized using the incipient wetness impregnation method. Mn₂O₃ was polymerized on MPC film using resorcinol (R) and formaldehyde (F) as carbon precursors, and Pluronic F127 as template. X-ray diffraction analysis, Fourier-transform infrared spectroscopy, Raman spectroscopy, x-ray photoelectron spectroscopy, and field-emission scanning electron microscopy were conducted to observe the structure and surface morphology of Mn₂O₃/MPC. Cyclic voltammetry and galvanostatic charge–discharge measurements were performed in 1 M potassium chloride electrolyte. Mn₂O₃/MPC composite film showed a specific capacitance 3.5 times larger than that of MPC film (53.59 mF cm⁻² versus 15.23 mF cm⁻²). The increased capacitance was due to the combination of electrical properties of MPC film and the pseudocapacitive characteristics of manganese oxide. Mn₂O₃/MPC composite film showed fairly stable capacitance with approximately 71% retention after 1000 cycles of stability test, compared with 98% for MPC.

采用初期湿润浸渍法合成了用于超级电容器电极的氧化锰（III）/介孔碳（Mn ₂ O ₃ / MPC）复合膜。以间苯二酚（R）和甲醛（F）为碳前体，以Pluronic F127为模板，在MPC膜上聚合Mn ₂ O ₃。进行了X射线衍射分析，傅立叶变换红外光谱，拉曼光谱，X射线光电子能谱和场发射扫描电子显微镜观察Mn ₂ O ₃ / MPC的结构和表面形态。循环伏安法和恒电流充放电测量是在1 M氯化钾电解质中进行的。锰₂O ₃ / MPC复合膜的比电容是MPC膜的比电容的3.5倍（53.59 mF cm ^-2对15.23 mF cm ^-2）。电容的增加归因于MPC膜的电性能和氧化锰的假电容特性的结合。Mn ₂ O ₃ / MPC复合膜在1000次稳定性测试后显示出相当稳定的电容，保留率约为71％，而MPC为98％。