公开(公告)号：US11376664B2

公开(公告)日：2022-07-05

申请号：US16916974

申请日：2020-06-30

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Gu-gon Park ,  Hyun-uk Park ,  Won-yong Lee ,  Sung-dae Yim ,  Min-jin Kim ,  Young-jun Sohn ,  Byungchan Bae ,  Seung-gon Kim ,  Dongwon Shin ,  Hwanyeong Oh ,  Seung Hee Woo ,  So Jeong Lee ,  Hyejin Lee ,  Yoon Young Choi ,  Seok-hee Park ,  Tae-hyun Yang

IPC: B22F9/24 ,  B22F9/04 ,  B22F1/07 ,  B22F1/14 ,  B82Y40/00 ,  B82Y30/00

Abstract: The present disclosure is related to a method to control sizes of core-shell nanoparticles comprising the steps of: manufacturing slurry by irradiating ultrasonic waves to a dispersion solution containing a reducing solvent, a carbon support, a transition metal precursor and a precious metal precursor; manufacturing a solid by filtering the manufactured slurry, followed by washing and drying; and manufacturing a nanoparticle of a transition metal core and a platinum shell by heat-treating the dried solid at a temperature of 450 to 900° C. and a pressure of 1 to 90 bar for 0.5 to 10 hours under N2 atmosphere.