Synthesis and structure of polycrystals MnCo2O4-GdCrO4

Abstract

The article discusses the synthesis and structure of polycrystalline nanocomposite MnCo₂O₄-GdCrO₄ material. The sol-gel method was used as a synthesis of the study. Using X-ray phase analysis (XPA), the structure of the synthesized nanomaterial composition was determined: spinel – cobalt manganate and perovskite – gadolinium chromite. Based on the results of the analysis, it was established that the polycrystalline two-phase composite is a system of spinel-cubic and perovskite-tetragonal types. Morphological analysis of the nanocomposite was carried out using a scanning electron microscope (SEM). According to the data obtained as a result of SEM, the elemental composition was confirmed and the average nanosize of the nanomaterial was obtained, and the content of the compound increased to x2000 was determined, the particle size of MnCo₂O₄ is 383-281 nm, GdCrO₄ – 1.63-1.34 µm; increased to x4000, particle size – MnCo₂O₄ 277-219 nm, GdCrO₄ – 1.48-1.27 µm; increased to x6000, particle size – MnCo₂O₄ 239-209 nm, GdCrO₄ –1.21-1.07 µm.