Nano-sized neem plant particles as an electrode for electrochemical storage applications

The present study analyzed on electrochemical performance of neem plant particles as an electrode material. The neem plant nano-sized particles are synthesized from neem leaves using a photon-induced method and their optical, structural properties, and morphology are analyzed. The appearance of nano-sized neem plant particles (Ns-NePPs) shows a broad absorption band found between ~ 340 and 800 nm in the UV–Vis spectrum. The band vibration of saponin, azadirachtin compound identified at 964 cm −1 in Fourier transforms infrared (FTIR) analysis and X-ray diffraction (XRD) pattern confirmed their crystalline nature with crystallite size of 22 nm. The scanning electron microscopy (SEM) image illustrates the spherical shape of Ns-NePPs with a size of 659 nm. The prepared neem electrode manifests the electrochemical redox peaks in cyclic voltammetry and chronopotentiometry analysis; it exhibits a notable specific capacitance of 157.36 F/g at a current density of 1 mA/s, and a good retention cyclic stability of 91.26% is suggested that could be utilized as energy storage material.