Abstract
•A photovoltaic solar cell converts solar energy to electrical energy.•The property of the electrode is important for optimal hydrogen production.•Electrode spacing have a significant effect on the hydrogen production.•Water electrolysis is enhanced by the thermodynamic characterization of the water molecule.
The paper presents an experimental study of hydrogen production by alkaline water electrolysis using a homemade alkaline electrolyzer. The effect of electrode spacing on hydrogen production was investigated. The results demonstrated that electrode spacing plays a significant role in hydrogen production. Smaller electrode spacing distance increases the interaction between the ionic electrolyte and the immersed electrode thereby increasing the rate of the electrochemical reaction, hydrogen production, and efficiency.