Synthesis and characterization of CeAlO3 via solid state method

To obtain the efficient synthesis of CeAlO3, CeAlO3 was synthesized via the solid-state method under low oxygen partial pressure and the presence of excess carbon. The morphology and structure of the products were investigated by XRD, SEM-EDS, Raman spectroscopy, and TEM. Results showed that the CeAlO3 product with high purity could be obtained by the current method. The color of the synthesized CeAlO3 product was green and the space group of the synthesized CeAlO3 structure was P4/mmm in the current study. Raman result indicated the CeAlO3 had three Raman active modes at about 156 cm-1, 173 cm-1, and 496 cm-1. The CeAlO3 nucleated at the contact surface between the formed Ce2O3 and Al2O3 by rapid surface diffusion. When the CeAlO3 formation by the reaction, the lattice diffusion promoted further the formation and compositional homogeneity of CeAlO3.

Automated summary

High-purity CeAlO3 product was synthesized through the solid-state method with low oxygen partial pressure and excess carbon. The morphology and structure of the product were investigated using various techniques. The synthesized CeAlO3 product exhibited green color and belonged to the P4/mmm space group. Raman spectroscopy indicated the presence of three active modes at approximately 156 cm-1, 173 cm-1, and 496 cm-1. CeAlO3 nucleated at the contact surface between formed Ce2O3 and Al2O3, with further promotion of formation and compositional homogeneity through lattice diffusion.