METHOD FOR PREPARING METAL OXIDE-COATED COMPOSITE METAL OXIDE USING EUTECTIC SELF-MIXING AND SELF-COATING METHOD

摘要

This invention is a) i) metal salts of two or more kinds of metals constituting the composite oxide, and ii ) the i particle diameter of each metal ion in the metal salt of the) car, the i) on the basis of the particle diameter of the metal ion in the metal salt of a eutectic mixture of 15% under the conditions including a separate metal eutectic phase or more metal ions, and b) providing the a) method for producing single-phase coating and the composite metal oxide to the metal oxide prepared by the method of the composite metal oxide coated with a eutectic mixture and calcining the produced metal oxide comprising the step of sintering in a step The. The method of the present invention as well as to economically produce the metal oxide-coated metal oxide complex compared to the conventional method, it is possible to coat the metal oxide on the surface of a single-phase mixed metal oxide.