Synthesis of perovskite-type lanthanum iron oxide by glycothermal reaction of a lanthanum-iron precursor

Perovskite-type lanthanum iron oxide (LaFeO3) powders were synthesized by glycothermal reaction at 300°C of a precursor that had been previously prepared by solvothermal decomposition of a mixture of lanthanum(III) isopropoxide and iron(III) butoxide (or methoxide) in toluene. Direct glycothermal reaction of the mixture yielded no double oxide, indicating that preparation of the precursor was important for crystallization of LaFeO3 by the glycothermal method.