Abstract: Hollow and pod-like Mn₂O₃ nanofibers were fabricated by electrospinning method. The morphology and structure of two kinds Mn₂O₃ nanofibers were characterized by scanning electron microscopy（SEM），transmission electron microscopy（TEM），X-ray diffraction（XRD），X-ray photoelectron spectroscopy（XPS）and specific surface tester. The possible formation mechanism of two kind of Mn₂O₃ nanofibers was discussed. The two kinds of nanofibers were used as the electrode materials for supercapacitor in 6 mol/L KOH，the cyclic voltammetry and the galvanostatic charge-discharge were carried out for performance test. Hollow Mn₂O₃ nanofiber electrode showd a high specific capacitance of 198 F/g which was higher than 146 F/g of pod-like Mn₂O₃ nanofiber electrode. This behavior may be attributed to its high specific surface area，which is beneficial for electrolyte transport during the charge-discharge process.

Key words: electrospinning, Mn₂O₃, nanofiber, electrode material, supercapacitor