Preparation and characterization of LaMnO3 and LaNiO3 perovskite type oxides by the hydrothermal synthesis method

Abstract

Perovskites which both naturally occurring and synthetically produced with important technological applications are a large class of minerals. Physical properties of interest to materials science through perovskites include superconductivity, magnetoresistance, ionic conductivity, and a multitude of dielectric properties, which are of great importance in microelectronics and telecommunication. Recently interest has arisen in perovskite-type oxides as catalysts due to high thermal and hydrothermal stability as well as high mechanical strength among other properties. In the present work, LaMnO3 and LaNiO3 perovskite type oxide catalysts are developed for the purpose of pyrolysis of biomass, and they are studied in terms of structure. The crystal structures of catalysts were determined via X-Ray Diffraction (XRD), morphology of the samples were analyzed by Scanning Electron Microscope (SEM), and the specific surface area of the samples were determined by N2 adsorption desorption isotherms (BET) measurements.