Abstract
In this study, Ni, NiFe, and Pt are electrochemically deposited on the porous carbon felt for various periods to increase catalytic efficiency and hydrogen gas production, which is investigated in an alkaline medium. The prepared electrodes are characterized by using electrochemical impedance spectroscopy, linear sweep voltammetry, potentiodynamic polarization, cyclic voltammetry, scanning electron microscopy, and X-ray diffraction methods. In addition, hydrogen gas volume is measured by applying the electrolysis process to the electrodes prepared in 1.0 M KOH. It is observed that the most effective Ni deposition time on carbon felt is 20 min. Nickel deposited electrodes were coated with Ni&Fe and Pt in different periods to increase the catalytic effect of the electrode. The highest catalytic effect on the hydrogen evolution reaction was obtained from the C#Ni20NiFe10@Pt45 electrode. Applied of a −0.2 VSHE overpotential, 80 mA cm−2 current density is obtained. The mechanism is determined as Volmer-Heyrovsky and rate determined step is Volmer.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
