Nanostructured materials are revolutionizing energy storage applications due to their high surface area and porosity, leading to improved efficiency and effectiveness. A recent study analyzed the morphology and characteristics of electrodes fabricated using Cu and ZIFs. The study found that incorporating ZIFs into CuO substrates resulted in increased porosity and electro-active sites, enhancing the charge-discharge capacity of supercapacitors.
Characterization techniques such as FESEM, EDS, and XPS were used to analyze the electrode materials’ elemental composition, morphology, and chemical states. The results revealed the formation of nanowires and nanorods, as well as the presence of different oxidation states of metal elements, which contributed to improved catalytic activity and redox performance.
Electrochemical performance testing showed that the CF/CuO/ZIFs@BMOF electrode exhibited high charge-discharge capacity and rate capability. The electrode showed diffusion-controlled charge storage mechanism, making it suitable for energy storage applications. The electrode also demonstrated excellent cycling stability and coulombic efficiency over 5000 cycles.
The electrode was further used in an asymmetric supercapacitor (ASC) device, in combination with activated carbon, to enhance energy density. The ASC device exhibited high specific capacity and stable cycling performance, with a columbic efficiency of 88.5% after 5000 cycles. The device showed promising energy and power densities, making it suitable for practical applications.
Overall, the study highlights the potential of nanostructured electrode materials for improving energy storage device performance and advancing the field of supercapacitors.
