Method for preparing platinum-zirconium oxide composite catalytic electrode material

The invention discloses a method for preparing a platinum-zirconium oxide composite catalytic electrode material, which comprises the following steps: 1) stirring and mixing zirconium oxychloride, yttrium acetate, calcium acetate and ethylene glycol to obtain an oxide sol precursor; 2) adding nano platinum powder or alloy powder thereof into the metal oxide sol precursor, adding inorganic salt until the solution is saturated, and stirring and mixing to obtain a premixed material; 3) performing high-temperature molten salt treatment on the premixed material, and then cooling, washing, drying and grinding to obtain platinum-oxide composite powder; and 4) adding an adhesive of ethyl cellulose, and mixing to obtain the platinum-zirconium oxide composite catalytic electrode material. After being sintered at high temperature, the platinum-zirconium oxide composite catalytic electrode material is particularly suitable for being used in manufacturing of high-temperature catalytic reaction electrode materials, the exc