NANOPARTICLE HAVING CORE/SHELL STRUCTURE, AND PREPARING METHOD OF THE SAME

摘要

The present invention relates to a preparing method of a nanoparticle having a core/shell structure, which comprises a step for applying ultrasonic waves to a solution containing a reducing solvent, a noble metal precursor, a transition metal precursor, and a carbon support. The reducing solvent has reducing power at a temperature of more than 130 degrees. The present invention easily and cost-efficiently prepares the nanoparticle having the core/shell structure using ultrasonic waves. [Reference numerals] (AA) Method A;(BB) Reducing solvent;(CC) Hollow hole;(DD,KK) Reduction of a precious metal precursor by a reducing solvent;(EE) Reduction of a transition metal precursor through ultrasonic treatment;(FF,GG) Transition metal core;(HH) Precious metal shell;(II) Method B;(JJ) Precious metal precursor;(LL) Precious metal core;(MM) Transition metal precursor;(NN) Precious metal core;(OO) Transition metal shell