Abstract
Our study includes a novel process for the synthesis of conductive polyaniline; named self-oxidation polymerization. Spinel LiNi0.5Mn1.5O4 (LNMO) and LiNi0.45Th0.05Mn1.5O4 (LNMO-Th) have been prepared by a sol-gel auto-combustion process. The well crystalline spinel Fd-3 m structures with a high degree of disordering with Th- substituted samples were obtained. The LNMO sample's particle morphology demonstrated a consistent octahedron-like form with a wide range of size distributions. The Th- doped LNMO samples, on the other hand, consisted of bigger, flattened particles with fewer facets and a smaller distribution of particle sizes. LiNi0.45Th0.05Mn1.5O4/Polyaniline composite (LNMO-Th-PA) was prepared for the first time by self-oxidation polymerization through the composite material itself without using any external oxidant. FT-IR, XRD and HR-TEM were utilized to assess the structural characteristics. The element valence variations were done using XPS spectroscopy. The chemical compositions were consistently distributed throughout the samples, according to EDX spectroscopy. The optical properties show that all samples have low band gap values. Thus, the synthesized materials are semiconductor materials and they can be used in photoelectric devices.