Enhanced Electrochemical Performance in Supercapacitors through Cu-Cy Based Metal-Organic Framework Electrodes

This study presents the synthesis of Cu-Cy as a thin film on stainless steel grids and directly on nickel foam, followed by extensive characterization to confirm phase purity and investigate structural details. SCXRD and PXRD analyses affirmed the material's synthesis and crystalline purity, while FTIR provided chemical bond insights. TGA assessed thermal stability, revealing robustness suitable for electrochemical applications. Electrochemical testing via cyclic voltammetry showed that nickel foam-supported Cu-Cy electrodes, without binders, achieved a remarkable specific capacity of 1210.89 F/g at 5mV/s. In contrast, the stainless-steel grid electrodes, with binders and conductive agents, reached 363.73 F/g. Additionally, Cu-Cy demonstrated excellent cyclization resistance, maintaining 90% capacity after 11,000 cycles. These results highlight Cu-Cy potential as a superior electrode material for supercapacitors, especially in binder-free configurations, paving the way for its use in cutting-edge energy storage solutions.PMID:38589772 | DOI:10.1002/cphc.202300822

Source: Chemphyschem - April 8, 2024 Category: Chemistry Authors: Najmeddine Ferhi Mohamed Essalhi Ramzi Zarrougui Source Type: research