초록

A noble metal ternary alloy catalyst, which has increased mass activity and stability. This catalyst comprises a ternary alloy of platinum, iridium and a metal selected from the group consisting of iron, chromium, cobalt, nickel, vanadium, titanium and manganese.

대표청구항 ▼

A high activity, high stability phosphoric acid fuel cell catalyst particularly adapted for the reduction of oxygen in phosphoric acid fuel cells consisting essentially of: a ternary noble metal catalyst having the composition Pti Irj Xk where X is selected from the group consisting essentially of T

A high activity, high stability phosphoric acid fuel cell catalyst particularly adapted for the reduction of oxygen in phosphoric acid fuel cells consisting essentially of: a ternary noble metal catalyst having the composition Pti Irj Xk where X is selected from the group consisting essentially of Ti, Mn, Ni, Co, V, Cr, and Fe and i is between 40 and 80, j is between 20 and 50, and k is between 10 and 30. A phosphoric acid fuel cell having an anode and a cathode with phosphoric acid disposed therebetween, said cathode comprising a platinum containing ternary alloy supported catalyst wherein the improvement consisting essentially of: said platinum alloy having alloys having the composition Pti Irj, Xk where X is selected from the group consisting of Ti, Mn, Ni, Co, V, Cr, and Fe and 40≤i≤80, 20≤j≤50 and 10≤k≤30.