The present teachings are directed toward electrocatalyst compositions of
platinum, tungsten and at least a third metal for use in fuel cells. The
electrocatalyst composition is composed essentially of platinum present
in an atomic percentage ranging between about 20 percent and about 55
percent, tungsten present in an atomic percentage ranging between about
30 percent and about 75 percent, and at least a third metal present in an
atomic percentage ranging between about 1 percent and about 40 percent.
The third metal can be at least one member selected from the group
consisting of scandium, vanadium, chromium, manganese, iron, cobalt,
copper, zinc, yttrium, niobium, molybdenum, cadmium, tin, hafnium,
tantalum and rhenium; additional fourth and fifth metals can also be
present.