Electrochemical Hydrogen Production by Using G/Ni/Ag Cathode

Abstract

In this study graphite (G) electrode was coated with nickel and decorated with silver (G/Ni/Ag) and we used this modified electrode as cathode in alkaline water electrolysis system. The electrochemical characterization of G, G/Ni and G/Ni/Ag was achieved via cyclic voltammetry technique. Hydrogen evolution performance of electrodes was investigated via chronoamperomety, cathodic polarization curves and electrochemical impedance measurements. Results showed that hydrogen production efficiency significantly increased and charge transfer resistance of electrodes decreased via Ni/Ag multilayer.