Fabrication of Fe@Ni-orotate coordination polymer composite: iron doping provokes the colorimetric recognition efficiency for naproxen drug and energy storage magnitude

Abstract

Coordination polymers have emerged as promising materials for various applications due to their unique properties and structural versatility. Making a composite with coordination polymers may broaden their applications. In this study, we developed Iron doped Nickel Coordination polymer Fe@Ni-CP from previously synthesized nickel orotate coordination polymer and explored its efficacy in sensing Naproxen (NPX) and also as an electrode material for energy storage devices. Photoluminescence sensing investigations exhibited a notable enhancement in NPX sensing efficiency, whereby the Fe@Ni-CP composite displayed a sensing efficiency of 94.05 %, surpassing the 6.42 % efficiency observed when utilizing the Ni-Orotate coordination polymer alone. Moreover, both materials showed significant differences in specific capacitance when tested as energy storage electrodes using Cyclic Voltammetry (CV) and Galvanostatic Charge Discharge (GCD). The Fe@Ni-CP has specific capacitance of 810.83 F/g, compared to 468.00 F/g for the Ni-CP. In Cyclic Voltammetry, Fe@Ni-CP retained 91.07 % specific capacitance after 4000 cycles. These findings underscore the potential of Fe@Ni-CP for multifunctional applications in sensing and energy storage.