Crystal structure of Samarium based orthoferrites for Solid Oxide Fuel Cells

Abstract

Synthesis and crystal structure of Sm1-xSrxFeO3 materials are studied. Single phase perovskite-based rare earth orthoferrites are synthesized using sol-gel method. The samples are formed in Single-phase solid solution of orthorhombic perovskite composition. Structural aspects of the distorted perovskite ABO3 phase are confirmed by powder XRD. The lattice parameters are resolute at normal room temperature (nearly 30oC) by XRD. Lattice parameters and volume are increased with growing Sr material. The diffraction records exposed no indication for order of Samarium and Strontium at the A site, nor for oxygen situation ordering at O sites for greatly condensed samples.