NOVELTY - An electrocatalyst comprises a Group VIII noble metal in intimate contact with a component M to form a Group VIII noble metal-M alloy, where M is a metal of Group IIIA, IVA, VIII, IB, IIB, VB, VIB, VIIB and/or WB.    USE - For an oxygen reduction reaction at cathode of an electrode structure for use in proton exchange membrane fuel cells (claimed).    ADVANTAGE - The electrocatalyst is abundant, inexpensive and efficient, and provides cathodes having better tolerance to methanol when compared to platinum.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a membrane-electrode assembly for use in a proton exchange membrane fuel cell, comprising an electrode comprising an anode and a cathode, where the cathode comprises catalyst layer(s);    (2) the production of an electrocatalytic electrode, comprising applying an electrode substrate with a first solution having a Group VIII noble metal, applying an electrode substrate with a second solution having metals of Groups IIIA, IVA, VIII, IB, IIB, VB, VIB, VIIB and/or WB, where the Group VIII noble metal and/or the metals of the second solution are, when not an oxide, capable of thermal decomposition to the corresponding oxide, decomposing thermally the first solution and the second solution, other than the oxides, to the corresponding oxides or mixed oxides, and curing the first solutions and second solutions at an elevated temperature;    (3) screening a metallic electrocatalyst array for electrocatalyst activity, comprising exposing greater than or equal to 2 electrocatalyst spots of an electrocatalyst spot array to an electrolyte solution, contacting greater than or equal to 2 electrocatalyst spots of an electrocatalyst spot array with a scanning electrochemical microscopy probe tip, generating oxygen in the scanning electrochemical microscopy probe tip, and measuring the oxygen reduction current at the electrocatalyst;    (4) generating a metallic electrocatalyst candidate array of a variety of electrocatalyst compositions, comprising depositing greater than or equal to2 electrocatalyst spots on a glass carbon substrate, depositing a first solution having metals to the glass carbon substrate, and depositing a second solution having metals to the first solution; and    (5) a fuel cell comprising an electrode comprising an anode in ionic contact with electrocatalytic cathode.