Study on Bamboo-like Structure Mn₂O₃ Prepared by Mn-MOF and Its Electrochemical Properties

The Mn-MOF precursor was prepared by a facile solvothermal method, and then, the Mn-MOF precursor was used as a template and calcined at 450 ℃ in an air atmosphere to obtain Mn₂O₃. The obtained samples were characterized by XRD, TG, SEM, CV and GCD. The results showed that the obtained Mn-MOF was a rod-like structure, and the obtained Mn₂O₃ was a bamboo-like structure after calcined. This bamboo-like structure Mn₂O₃ demonstrated an excellent electrochemical performance, the specific capacitance was 149.00 F/g when the current density was 0.50 A/g in a 0.5 mol/L Na₂SO₄ aqueous solution. The development of this new bamboo-like structure Mn₂O₃ opened up a new direction for the application of Mn₂O₃ materials in the field of supercapacitors.