NOVELTY - An electrode structure comprises a cathodic structure, an ionic exchange membrane (2) disposed next to the cathodic structure, and an anodic structure. The anodic structure comprises a primary thin platinum alloy black layer disposed next to the ionic exchange membrane, a catalytic platinum alloy carbon support layer, a non-catalytic carbon support layer and a primary substrate layer (111). The catalytic platinum alloy carbon support layer and non-catalytic carbon support layer are disposed between the primary thin platinum alloy black layer and the primary substrate layer.    USE - Electrode structure is used for fuel cell (claimed) used for power generation.    ADVANTAGE - The electrode structure exhibits high reaction discharge efficiency. The fuel cell having electrode structure has improved output voltage and power density by consuming reduced amount of catalyst and fuel.    DETAILED DESCRIPTION - An electrode structure comprises a cathodic structure, an ionic exchange membrane disposed next to the cathodic structure, and an anodic structure. The anodic structure comprises a primary thin platinum alloy black layer disposed next to the ionic exchange membrane, a catalytic platinum alloy carbon support layer, a non-catalytic carbon support layer and a primary substrate layer. The catalytic platinum alloy carbon support layer and non-catalytic carbon support layer are disposed between the primary thin platinum alloy black layer and the primary substrate layer, such that the combination of non-catalytic carbon support layer, catalytic platinum alloy carbon support layer and primary thin platinum alloy black layer reduces the crossover of fuel from the anodic structure to cathodic structure. An INDEPENDENT CLAIM is included for power generation fuel cell.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of anodic structure.    Ionic exchange membrane (2)    Primary substrate layer (111)    Platinum alloy particles (115)    High platinum alloy carbon support particles (117)    Appropriate polymer (118)    Platinum alloy carbon support layer (131)    Low platinum alloy carbon support particles (133)