公开(公告)号：US20230402619A1

公开(公告)日：2023-12-14

申请号：US18188740

申请日：2023-03-23

Applicant: KOREA INSTITUTE OF ENERGY RESEARCH

Inventor： Eun Jik LEE ,  Gu-gon PARK ,  DongJe LEE ,  Sung-dae YIM ,  Seok-hee PARK ,  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 ,  Yun Sik KANG ,  Won-yong LEE ,  Tae-hyun YANG

IPC: H01M4/92 ,  H01M4/90 ,  H01M4/86

CPC classification number: H01M4/921 ,  H01M4/9016 ,  H01M4/8652

Abstract: A method for preparing a platinum alloy catalyst using an oxide coating according to an embodiment of the present disclosure comprises: a first step of preparing a dispersion by mixing a commercial platinum catalyst and a transition metal precursor with a solvent; a second step of preparing a catalyst by putting an ultrasonic tip into the dispersion prepared through the first step and performing an ultrasonic process; a third step of performing a primary heat treatment process on the catalyst prepared through the second step; a fourth step of performing an acid treatment process on the catalyst that has undergone the primary heat treatment process through the third step; and a fifth step of preparing a platinum alloy catalyst by performing a secondary heat treatment process on the catalyst that has undergone the acid treatment process through the fourth step.