| 초록 |
Polymer electrolyte membrane fuel cells (PEMFCs) are considered a potential power source for automotive and residential applications. However, the high cost of Pt in cathode catalyst and the slow kinetics of oxygen reduction reaction (ORR) on Pt-based catalysts hinder the commercialization of fuel cells. Instead of using platinum, recent studies have focused on the discovery of non platinum electrocatalysts which have excellent electrocatalytic activity and chemical stability. In this study, we synthesized gold core/palladium-cobalt alloy shell catalyst. The developed catalysts showed excellent catalytic activity than Au core/Pd shell catalysts. The structural information and electrocatalytic activities of the Au core/PdxCo shell nanoparticles were analyzed by XRD, HR-TEM, XPS, ORR test and cyclic voltammetry (CV). |
