公开(公告)号：US20230077033A1

公开(公告)日：2023-03-09

申请号：US17895639

申请日：2022-08-25

Applicant: HYUNDAI MOBIS CO., LTD. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Eun Young YOU ,  Yun Sik KANG ,  Dae Jong YOU ,  Sung Chul LEE ,  Sung Jong YOO ,  Se Hyun LEE ,  Jue Hyuk JANG ,  Eung Jun LEE

IPC: H01M4/92 ,  H01M4/88

Abstract: A fuel cell catalyst including a conductive carrier and core-shell nanoparticles supported on the carrier. The core includes platinum and a transition metal and the shell includes a secondary metal. An electrochemical specific activity measured at a voltage of 0.05 V to 1.05 V (vs. RHE) in a potential range, at a scan rate of 5 mV/s and a rotation rate of 1,600 rpm in an O2-saturated 0.1 M HClO4 electrolyte solution is 0.3 mA/cm2 to 0.6 mA/cm2, and a mass activity is 0.05 mA/μg to 0.08 mA/μg.