SYNTHESES OF LaCrO_3 NANOPOWDER BY HYDROTHERMAL METHOD FOR SOLID FUEL CELL INTERLAYER

摘要

PURPOSE: A manufacturing method of LaCrO3 nanopowder easily controls the particle size and shape of single phase perovskite nanopowder by using a hydrothermal synthesis. CONSTITUTION: A manufacturing method of LaCrO3 nanopowder comprises a step of mixing lanthanium(III) acetate hydrate(La(CH3CO2)3 1.5H2O) and chromium(III) acetate hydroxide((CH3CO2)7Cr3(OH)2) with a La/Cr molar ratio of 0.7-1.7; a step of adding KOH as a precipitant; a step of stirring the mixture at 130 C for 4 hours; and a step of manufacturing spherical or oval LACrO3 nanopowder with a particle size of 40-150 nm by the hydrothermal treatment of the mixture at 200-250 C for 24 hours.