Structural, Morphological and Surface Investigation of Perovsikte (LSNO) Nanoparticles

Perovsikte-type transition metal oxides have emerged as promising electrode materials for next-generation energy storage systems due to their remarkable electronic conductivity, structural stability, and tunable redox properties. In the present study, lanthanum strontium
nickel oxide (LaSrNiO₃, LSNO) nanoparticles were synthesized and systematically characterized to investigate their structural, morphological, and surface properties relevant to electrochemical applications. The crystalline phase and structural purity of the synthesized LSNO nanoparticles were confirmed using X-ray diffraction (XRD), revealing a well-defined perovskite crystal structure with sharp diffraction peaks. Fourier transform infrared spectroscopy (FTIR) analysis verified the formation of metal–oxygen bonds and
confirmed the presence of characteristic vibrational modes associated with the perovskite lattice. The surface area and pore distribution were examined through Brunauer–Emmett–Teller (BET) analysis, indicating a mesoporous structure that is favorable for electrolyte ion diffusion and enhanced electrochemical activity. Morphological examination using scanning electron microscopy (SEM) revealed agglomerated nanoscale particles with irregular yet porous surface
textures, which provide abundant active sites for charge storage processes. Elemental composition and chemical purity were validated by energy-dispersive X-ray spectroscopy (EDAX), confirming the presence of La, Sr, Ni, and O elements without significant impurities. The combined structural and surface analyses suggest that LSNO
nanoparticles possess desirable physicochemical properties suitable for high-performance electrochemical energy storage devices such as super capacitors. These findings provide valuable insights into the design and optimization of Perovsikte-based electrode materials for advanced energy storage technologies.