Fuel cell electrode and method for manufacturing membrane-electrode assembly using the same

摘要

The present invention provides a fuel cell electrode, and a method for manufacturing a membrane-electrode assembly (MEA) using the same. The fuel cell electrode is formed by adding carbon nanotubes to reinforce the mechanical strength of the electrode, cerium-zirconium oxide particles to prevent corrosion of a polymer electrolyte membrane, and an alloy catalyst prepared by alloying a second metal (such as Ir, Pd, Cu, Co, Cr, Ni, Mn, Mo, Au, Ag, V, etc.) with platinum to prevent the dissolution, migration, and agglomeration of platinum.

主权项

1. A fuel cell cathode comprising platinum, cerium and zirconium oxide particles, particles of a second metal, and at least one carbon support, which form a quaternary alloy catalyst, wherein the at least one carbon support is selected from the group consisting of active carbon with a particle diameter of 1 to 1,000 nm, carbon nanofibers with a fiber diameter of 1 to 1,000 nm and a length of 0.1 to 1,000 μm and graphitized carbon with a particle diameter of 1 to 1,000 nm, the quaternary alloy catalyst is formed by supporting cerium-zirconium oxide particles having a size of about 1 to about 100 nm on the carbon nanofibers and supporting the platinum and the second metal having a size of about 1 to about 100 nm on the at least one carbon support selected from the group consisting of the active carbon and the graphitized carbon.