NOVELTY - The fuel cell (70) comprises an anode (72) having a flow field for flowing hydrogen across the anode, an anode catalyst (74) applied to a side of the anode and configured to split the hydrogen into protons and electrons, a cathode (78) having a flow field for flowing oxygen across the cathode, and a stabilized cathode catalyst (80) configured to split oxygen molecules into oxygen atoms such that the oxygen atoms combine with the protons from the anode to form water and applied to a side of the cathode such that it opposes the anode catalyst, and an electrolyte (76).    USE - The fuel cell is useful for generating electrical energy.    ADVANTAGE - The fuel cell is capable of effectively and economically generating electrical energy, and has high performance and more stable for long time during operation.    DETAILED DESCRIPTION - The fuel cell (70) comprises an anode (72) having a flow field for flowing hydrogen across the anode, an anode catalyst (74) applied to a side of the anode and configured to split the hydrogen into protons and electrons, a cathode (78) having a flow field for flowing oxygen across the cathode, and a stabilized cathode catalyst (80) configured to split oxygen molecules into oxygen atoms such that the oxygen atoms combine with the protons from the anode to form water and applied to a side of the cathode such that it opposes the anode catalyst, an electrolyte (76) located between the anode and cathode catalysts, and a circuit to receive the electrons from the anode to produce electrical power. The cathode catalyst is formed of nanoparticles. Each nanoparticle comprises a core formed of platinum atoms, adjoining terraces formed of platinum surface atoms, edges formed of atoms from a second metal having a standard potential equal to or less than a standard electrode potential of platinum, corners formed of atoms from the second metal, and a surface defect formed of atoms of the second metal. Each edge joins two terraces. Each corner represents an intersection of two edges. The electrolyte is configured to allow protons from the anode to pass to the cathode and for forcing electrons from the anode to travel along an external circuit and to produce electrical power, where the electrolyte is a polymer electrolyte membrane. The protons combine with oxygen atoms at the cathode to form water, and pass through the electrolyte to the cathode. The nanoparticles of the cathode catalyst layer include cube-octahedral nanoparticles, cubic nanoparticles, tetrahedral nanoparticles, icosahedra nanoparticles, spherical nanoparticles, quasi-spherical nanoparticles, rhombohedra nanoparticles or truncated octahedral nanoparticles. The second metal atoms occupy 5-75 percent of a total surface area of an outer surface of the nanoparticle, which have a diameter of 1-20 nanometers. The surface defect includes a step atom, a kink atom, and a step adatom. An INDEPENDENT CLAIM is included for a method of generating electrical power.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a fuel cell.    Fuel cell (70)    Anode (72)    Anode catalyst (74)    Electrolyte (76)    Cathode (78)    Cathode catalyst. (80)