METHOD FOR PRODUCING METAL-COATED METAL OXIDE FINE PARTICLE, AND THE METAL-COATED METAL OXIDE FINE PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing metal-coated metal oxide particles in which a uniform metal-coating layers are formed on surfaces of core particles irrespective of a particle size of metal oxide particles to become cores.

SOLUTION: The method for producing metal-coated metal oxide fine particles includes steps (a)-(c): a step (a) to make the metal oxide fine particles adsorb a metal complexing agent by adding the metal complexing agent to dispersion of metal oxide fine particles in such a way that its solid content is in a range of 0.1-3,000 wt.% of a weight (Wp) of the metal oxide fine particles as the solid content; a step (b) to add a metal salt aqueous solution thereto; and a step (c) to form the metal-coating layers by adding a reducing agent thereto and reducing the metal salt.

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