Application of Pd-modified Nickel Foam Cathodes to the Process of Alkaline Water Electrolysis

This work presents an investigation of hydrogen evolution reaction (HER) through the process of alkaline water electrolysis (AWE), performed by means of pure and palladium-modified nickel foam cathodes, and stainless steel anodes. Temperature-dependent kinetics of the HER were studied in 2 and 8 M KOH, over the temperature range: 20-60 degrees C through a.c. impedance spectroscopy and d.c. galvanostatic electrochemical experiments. The charge-transfer resistance, exchange current-density for the HER and other electrochemical parameters for examined catalyst samples were presented.