METHOD FOR PRODUCING CORE-SHELL PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for efficiently producing various kinds of core-shell particles.

SOLUTION: The method includes: a core particle-producing step of obtaining a core particle dispersion solution in which first metal particles are dispersed, by irradiating a first metal ion solution containing a first metal ion with a first output ultrasonic wave of equal to or more than 0.3 W/cm2; and a core-shell particle-producing step of mixing the particle dispersion solution with a second metal ion to produce a mixed solution and irradiating the mixed solution with a second output ultrasonic wave lower than the first output to obtain a core-shell particle dispersion solution in which core-shell particles with the first metal serving as a core and the second metal serving as a shell are dispersed.

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