The increasing global demand for advanced application necessitates the development of high-performance materials. Nanocomposites (NCs) framed by two distinct components of metal oxides, at least one of which is at the nanoscale enhances the chemical and physical properties of parent oxides. Present work is reporting the size-controlled synthesis of iron oxide (Fe2O3), cerium oxide (CeO2) and cobalt oxide (Co3O4) nanomaterials as well as its binary based NCs materials (Fe2O3-CeO2 and Co3O4-CeO2) by self-propagating combustion reaction (SPCR) method using polymer as a fuel. Characterization and thermal application of the prepared nanocomposite samples is envisaged. Size of the prepared NC samples was analyzed by DLS spectrum. The structural and morphological characterizations of the prepared nano composite samples were carried out by X-ray diffraction (XRD) and scanning electron microscope (SEM) analysis respectively. XRD analysis confirmed the coexistence of binary phases in the nanocomposite and shows crystalline nature. The surface morphology analysis showed the presence of spherical and compact nature. FTIR showed changes in the intensity of the M–O stretching band, indicating Ce-induced bond polarization in the spinel lattice. Observation of metal oxide (M-O) and metal-metal (M-M) bonding in the spectrum supports the composite formation. EDX analysis was carried out to further confirm the presence of Fe, Ce and Co metals and also characteristics absorption peaks of signals demonstrate the final phases of the samples. UV-vis spectroscopic analysis and fluorescence study of the samples was undertaken to know the absorption and emission behavior of the NCs respectively. Thermal investigation assesses the NC samples with high thermal stability. The insights of the present work highlighting the growing body of knowledge in metal oxide nanocomposite materials and pave the way for innovations in thermal technologies. These findings highlight the potential of these nanocomposites as promising candidates for various applications.
Lagashetty et al. (Fri,) studied this question.