METHOD FOR PREPARING METAL OXIDE CONTAINING PRECIOUS METALS

The present invention relates to a method for preparing a metal oxide containing precious metals, which can be used for a catalyst for purifying automobile exhaust gases and has excellent heat resistance and, more particularly, to a method for preparing a metal oxide containing precious metals including the step of continuously reacting a reaction mixture, including (i) water, (ii) a water-soluble precious metal compound, (iii) a water-soluble cerium compound and (iv) at least one water-soluble metal compound selected from the group consisting of a zirconium compound, a scandium compound, a yttrium compound and a lanthanide metal compound other than a cerium compound, at a temperature from 2000 C to 700° C. and at a pressure from 180 bar to 550 bar, wherein the molar ratio of precious metal to metal other than the precious metal in a reaction product is in the range from 0.001 to 0.1.