AC Impedance Measurements On Electrocatalytic Electrodes Interface For Hydrogen Evolution Kinetics In Seawater Electrolysis

One of the nowadays energy production's most significant issue is the use of hydrogen, obtained through the electrolysis of water. Recent studies indicate seawater as a natural source, in fact the most abundant resource on earth. Obtaining hydrogen through the electrolysis of seawater, although very tempting at first sight, raises certain environmental and technological challenges. This study follows the behavior of nickel, as a cathode material for a seawater electrolysis cell. The yield of the electrolysis cell is directly proportional to the electrocatalytic capacity of the cathode. At the cathode, the reduction reaction of the hydrogen ion and the release of hydrogen fuel gas take place. The electrochemical impedance spectroscopy (EIS) technique was used to analyze the electrocatalytic characteristics of a nickel-based cathode material.