NOVELTY - The electrodes for producing hydrogen through an electrolysis of aqueous solutions of ammonia in electrolysers by solid polymer anionic exchange membranes, comprises a nickel or titanium support on which a nanostructured catalyst is deposited. The nanostructured catalyst is based on transition metals modified by the electrochemical or spontaneous of the metals. The nano structured catalysts are prepared starting from a metal complexes formed from a transition metal salt in binary combination and templating polymers.    USE - The electrodes are useful for the production of hydrogen through the electrolysis of aqueous solutions of ammonia in electrolysers using solid polymer anionic exchange membranes, and in a fuel cell.    ADVANTAGE - The electrodes having the nanostructured catalyst reduces the activation energy for both the anode and cathode reactions thus ensuring an improved energetic efficiency of the electrolyser.    DETAILED DESCRIPTION - The electrodes for producing hydrogen through an electrolysis of aqueous solutions of ammonia in electrolysers by solid polymer anionic exchange membranes, comprises a nickel or titanium support on which a nanostructured catalyst is deposited. The nanostructured catalyst is based on transition metals modified by the electrochemical or spontaneous of the metals. The nano structured catalysts are prepared starting from a metal complexes formed from a transition metal salt in binary combination and templating polymers obtained by the condensation of 4-(1-((phenyl-2,4-disubstituted)-hydrazine)-alkyl)-benzene-1,3-diol with phenol or a 3,5 substituted phenol and formaldehyde/paraformaldehyde at 20-150 degrees C and with a resulting molecular weight of 1000-50000. An INDEPENDENT CLAIM is included for a method of the preparation of electrodes.    DESCRIPTION OF DRAWING(S) - The figure shows a functional design of an electrolyser used for the electrolysis of aqueous solutions of ammonia with an anionic exchange solid polymeric membrane.