ELECTRODE CATALYST FOR FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, FUEL CELL AND MANYFACTURING METHOD OF ELECTRODE CATALYST FOR FUEL CELL

摘要

PURPOSE: A fuel cell electrode catalyst is provided to keep activation characteristic of catalyst while reducing the amount of precious metal use. CONSTITUTION: A fuel cell electrode catalyst comprises a core0shell structure of active nano particle. The active nano particle (100) comprises: a core (110) comprising palladium (Pd) and first transition metal; and a shell (120) coating the core, and comprising platinum and second transition metal. The first and second transition metal is iron (Fe), cobalt (CO), or nickel (Ni) independently. The core has an average diameter of 1-15 nm. The shell has an average thickness of 1-3 nm. The electrode catalyst also comprises a carrier dipping the active nano particle.