Organic-Inorganic Complexation Chemistry-Mediated Synthesis of Bismuth-Manganese Bimetallic Oxide for Energy Storage Application

An organic-inorganic complexation method was applied for the synthesis of bismuth-manganese bimetallic oxide (BMO) nanoparticles where highly dispersed oxide particles were stabilized in an organic matrix (hexamethylenediamine). The as-synthesized hybrid material was subjected to microscopic, optical, and structural studies to gain comprehensive insights into the system. In the X-ray diffraction pattern, the majority of the diffracted peaks are matched to the orthorhombic phase of the Bi3Mn2O7 structure. To extract the electrochemical property, the hybrid system was applied as an anode material and investigated for supercapacitive performance under alkaline conditions. The specific capacitance obtained was 612 F·g-1 at the current density of 1 A·g-1, and under the same current density, the energy density and power density achieved were 137.78 W·h·kg-1 and 0.90 kW·kg-1, respectively.