PLATINUM CORE SHELL CATALYST, MANUFACTURING METHOD FOR SAME, AND FUEL CELL USING SAME

摘要

The problem of the present invention is to provide a platinum core shell catalyst that has superior durability and catalytic efficiency, and has gold core particles with an extremely small diameter (5 nm or less). The present invention is a platinum core shell catalyst for fuel cells, characterized in that the particle size thereof is 1.6 -6.8 nm, and by having core particles that include gold, and a shell formed on the surface of the core and comprising platinum and iridium and/or ruthenium.