Synthesis, Characterization, and Supercapacitor Performance of Fe-MOF Nanorods for Energy Storage Applications

Metal–organic frameworks (MOFs) are highly desirable constituents in the field of supercapacitors due to their ability to be customized with various compositions, allowing for easy functionalization. Nonetheless, their inherent specific capacitance and energy density are low, which limits their potential for advanced energy storage applications. In this study, we synthesized Fe-MOF using a solvothermal method. This approach facilitated the formation of Fe-MOF with well-defined nanorod morphology. The optimized electrode material demonstrated an increased specific capacitance of 96 F g⁻¹ at 0.04 A g⁻¹ and exhibited stable cycle performance, maintaining over 85% of its capacity after 5000 cycles. On the other hand, the identical erect, permeable, and highly interrelated tetragonal rod-like cylindrical nanomaterials are capable of maintaining structural integrity throughout uninterrupted charge–discharge cycles. Moreover, the synthesized electrode material demonstrated an energy density of 0.274 Wh kg⁻¹ and a power density of 10.56 W kg⁻¹, highlighting its potential for onsite application in energy storage devices.