HIGH-TEMPERATURE SYNTHESIS OF ALUMINATES BY FLAME SPRAY PYROLYSIS

摘要

The present invention (I) providing at least one solution or suspension comprising precursor compounds of elements A and B and also aluminum precursor compounds in a solvent, (ii) converting the solution or suspension to an aerosol, (iii) (Iv) conducting pyrolysis, and (v) separating the resulting particles comprising the aluminate of formula (I) from the pyrolysis gas RTI ID = 0.0 (I) / RTI (I) A ₁ B _x Al _12-x O _{19 -y} In this formula, A is at least one element selected from the group consisting of Sr, Ba and La, B is at least one element selected from the group consisting of Mn, Fe, Co, Ni, Rh, Cu and Zn, x is from 0.05 to 1.0, y is a value determined by the oxidation state of the remaining elements.