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 Bi 3 Mn 2 O 7 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.