Abstract
The synthesized LiZnPO4 nanoparticles were characterized at different temperatures (500°C, 600°C, and 700°C) using various techniques including XRD, FTIR, FESEM, XPS, and electrochemical analyses. X-ray diffraction (XRD) analysis of LiZnPO4 nanoparticles sintered at temperatures from 400 to 700°C revealed well-crystallized structures at 700°C, with preferred orientations along (202) and (020) planes. The Scherrer formula was employed to determine crystallite sizes, showing an increase from 55 nm at 400°C to 85 nm at 700°C. Fourier-transform infrared spectroscopy (FTIR) confirmed characteristic bonds within LiZnPO4, while scanning electron microscopy (SEM) exhibited morphological changes with sintering temperature, emphasizing the impact on size and aggregation. Energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) confirmed elemental compositions and surface electronic states, respectively. Electrochemical experiments demonstrated promising performance, with cyclic voltammetry (CV), galvanostatic charge and discharge (GCD), and electrochemical impedance spectroscopy (EIS) revealing reversible redox processes and good rate capability.