| 초록 |
Proton exchange membrane fuel cells (PEMFCs) have attracted considerable attention for power sources of zero emission vehicles as they are compact, lightweight, clean, and have a high power density. The oxygen reduction reaction (ORR) at the cathode of a PEMFC plays a key factor in determining the performance of a fuel cell because the reaction is lower than anode, and durable ORR catalysts able to endure over 5,000 hours of operation are essential for the commercial adoption of fuel cells. The ORR catalyst is generally prepared by loading Pt on a carbon black (CB) support. However, Pt/CB catalysts suffer from low long-term durability and large overpotential loss. This study developed electrochemically durable oxygen reduction reaction (ORR) catalysts for proton exchange membrane fuel cells (PEMFCs), resulting in a consistent cell potential, electrochemical surface area, and electrical resistance. |
